diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..2c5bbd4
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,6 @@
+{
+    "require": {
+        "erusev/parsedown": "^1.8",
+        "erusev/parsedown-extra": "^0.8.1"
+    }
+}
diff --git a/composer.lock b/composer.lock
new file mode 100644
index 0000000..92c00a6
--- /dev/null
+++ b/composer.lock
@@ -0,0 +1,126 @@
+{
+    "_readme": [
+        "This file locks the dependencies of your project to a known state",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
+        "This file is @generated automatically"
+    ],
+    "content-hash": "0e530aa9abec7b5b8c25831c48fdfc63",
+    "packages": [
+        {
+            "name": "erusev/parsedown",
+            "version": "1.8.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/erusev/parsedown.git",
+                "reference": "96baaad00f71ba04d76e45b4620f54d3beabd6f7"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/erusev/parsedown/zipball/96baaad00f71ba04d76e45b4620f54d3beabd6f7",
+                "reference": "96baaad00f71ba04d76e45b4620f54d3beabd6f7",
+                "shasum": ""
+            },
+            "require": {
+                "ext-mbstring": "*",
+                "php": ">=7.1"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^7.5|^8.5|^9.6"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-0": {
+                    "Parsedown": ""
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Emanuil Rusev",
+                    "email": "hello@erusev.com",
+                    "homepage": "http://erusev.com"
+                }
+            ],
+            "description": "Parser for Markdown.",
+            "homepage": "http://parsedown.org",
+            "keywords": [
+                "markdown",
+                "parser"
+            ],
+            "support": {
+                "issues": "https://github.com/erusev/parsedown/issues",
+                "source": "https://github.com/erusev/parsedown/tree/1.8.0"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/erusev",
+                    "type": "github"
+                }
+            ],
+            "time": "2026-02-16T11:41:01+00:00"
+        },
+        {
+            "name": "erusev/parsedown-extra",
+            "version": "0.8.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/erusev/parsedown-extra.git",
+                "reference": "91ac3ff98f0cea243bdccc688df43810f044dcef"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/erusev/parsedown-extra/zipball/91ac3ff98f0cea243bdccc688df43810f044dcef",
+                "reference": "91ac3ff98f0cea243bdccc688df43810f044dcef",
+                "shasum": ""
+            },
+            "require": {
+                "erusev/parsedown": "^1.7.4"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^4.8.35"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-0": {
+                    "ParsedownExtra": ""
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Emanuil Rusev",
+                    "email": "hello@erusev.com",
+                    "homepage": "http://erusev.com"
+                }
+            ],
+            "description": "An extension of Parsedown that adds support for Markdown Extra.",
+            "homepage": "https://github.com/erusev/parsedown-extra",
+            "keywords": [
+                "markdown",
+                "markdown extra",
+                "parsedown",
+                "parser"
+            ],
+            "support": {
+                "issues": "https://github.com/erusev/parsedown-extra/issues",
+                "source": "https://github.com/erusev/parsedown-extra/tree/0.8.x"
+            },
+            "time": "2019-12-30T23:20:37+00:00"
+        }
+    ],
+    "packages-dev": [],
+    "aliases": [],
+    "minimum-stability": "stable",
+    "stability-flags": {},
+    "prefer-stable": false,
+    "prefer-lowest": false,
+    "platform": {},
+    "platform-dev": {},
+    "plugin-api-version": "2.9.0"
+}
diff --git a/vendor/autoload.php b/vendor/autoload.php
new file mode 100644
index 0000000..e74c47f
--- /dev/null
+++ b/vendor/autoload.php
@@ -0,0 +1,22 @@
+<?php
+
+// autoload.php @generated by Composer
+
+if (PHP_VERSION_ID < 50600) {
+    if (!headers_sent()) {
+        header('HTTP/1.1 500 Internal Server Error');
+    }
+    $err = 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    if (!ini_get('display_errors')) {
+        if (PHP_SAPI === 'cli' || PHP_SAPI === 'phpdbg') {
+            fwrite(STDERR, $err);
+        } elseif (!headers_sent()) {
+            echo $err;
+        }
+    }
+    throw new RuntimeException($err);
+}
+
+require_once __DIR__ . '/composer/autoload_real.php';
+
+return ComposerAutoloaderInit7e1495fb2e8a2820ba6766561cd0f083::getLoader();
diff --git a/vendor/composer/ClassLoader.php b/vendor/composer/ClassLoader.php
new file mode 100644
index 0000000..7824d8f
--- /dev/null
+++ b/vendor/composer/ClassLoader.php
@@ -0,0 +1,579 @@
+<?php
+
+/*
+ * This file is part of Composer.
+ *
+ * (c) Nils Adermann <naderman@naderman.de>
+ *     Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Composer\Autoload;
+
+/**
+ * ClassLoader implements a PSR-0, PSR-4 and classmap class loader.
+ *
+ *     $loader = new \Composer\Autoload\ClassLoader();
+ *
+ *     // register classes with namespaces
+ *     $loader->add('Symfony\Component', __DIR__.'/component');
+ *     $loader->add('Symfony',           __DIR__.'/framework');
+ *
+ *     // activate the autoloader
+ *     $loader->register();
+ *
+ *     // to enable searching the include path (eg. for PEAR packages)
+ *     $loader->setUseIncludePath(true);
+ *
+ * In this example, if you try to use a class in the Symfony\Component
+ * namespace or one of its children (Symfony\Component\Console for instance),
+ * the autoloader will first look for the class under the component/
+ * directory, and it will then fallback to the framework/ directory if not
+ * found before giving up.
+ *
+ * This class is loosely based on the Symfony UniversalClassLoader.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ * @see    https://www.php-fig.org/psr/psr-0/
+ * @see    https://www.php-fig.org/psr/psr-4/
+ */
+class ClassLoader
+{
+    /** @var \Closure(string):void */
+    private static $includeFile;
+
+    /** @var string|null */
+    private $vendorDir;
+
+    // PSR-4
+    /**
+     * @var array<string, array<string, int>>
+     */
+    private $prefixLengthsPsr4 = array();
+    /**
+     * @var array<string, list<string>>
+     */
+    private $prefixDirsPsr4 = array();
+    /**
+     * @var list<string>
+     */
+    private $fallbackDirsPsr4 = array();
+
+    // PSR-0
+    /**
+     * List of PSR-0 prefixes
+     *
+     * Structured as array('F (first letter)' => array('Foo\Bar (full prefix)' => array('path', 'path2')))
+     *
+     * @var array<string, array<string, list<string>>>
+     */
+    private $prefixesPsr0 = array();
+    /**
+     * @var list<string>
+     */
+    private $fallbackDirsPsr0 = array();
+
+    /** @var bool */
+    private $useIncludePath = false;
+
+    /**
+     * @var array<string, string>
+     */
+    private $classMap = array();
+
+    /** @var bool */
+    private $classMapAuthoritative = false;
+
+    /**
+     * @var array<string, bool>
+     */
+    private $missingClasses = array();
+
+    /** @var string|null */
+    private $apcuPrefix;
+
+    /**
+     * @var array<string, self>
+     */
+    private static $registeredLoaders = array();
+
+    /**
+     * @param string|null $vendorDir
+     */
+    public function __construct($vendorDir = null)
+    {
+        $this->vendorDir = $vendorDir;
+        self::initializeIncludeClosure();
+    }
+
+    /**
+     * @return array<string, list<string>>
+     */
+    public function getPrefixes()
+    {
+        if (!empty($this->prefixesPsr0)) {
+            return call_user_func_array('array_merge', array_values($this->prefixesPsr0));
+        }
+
+        return array();
+    }
+
+    /**
+     * @return array<string, list<string>>
+     */
+    public function getPrefixesPsr4()
+    {
+        return $this->prefixDirsPsr4;
+    }
+
+    /**
+     * @return list<string>
+     */
+    public function getFallbackDirs()
+    {
+        return $this->fallbackDirsPsr0;
+    }
+
+    /**
+     * @return list<string>
+     */
+    public function getFallbackDirsPsr4()
+    {
+        return $this->fallbackDirsPsr4;
+    }
+
+    /**
+     * @return array<string, string> Array of classname => path
+     */
+    public function getClassMap()
+    {
+        return $this->classMap;
+    }
+
+    /**
+     * @param array<string, string> $classMap Class to filename map
+     *
+     * @return void
+     */
+    public function addClassMap(array $classMap)
+    {
+        if ($this->classMap) {
+            $this->classMap = array_merge($this->classMap, $classMap);
+        } else {
+            $this->classMap = $classMap;
+        }
+    }
+
+    /**
+     * Registers a set of PSR-0 directories for a given prefix, either
+     * appending or prepending to the ones previously set for this prefix.
+     *
+     * @param string              $prefix  The prefix
+     * @param list<string>|string $paths   The PSR-0 root directories
+     * @param bool                $prepend Whether to prepend the directories
+     *
+     * @return void
+     */
+    public function add($prefix, $paths, $prepend = false)
+    {
+        $paths = (array) $paths;
+        if (!$prefix) {
+            if ($prepend) {
+                $this->fallbackDirsPsr0 = array_merge(
+                    $paths,
+                    $this->fallbackDirsPsr0
+                );
+            } else {
+                $this->fallbackDirsPsr0 = array_merge(
+                    $this->fallbackDirsPsr0,
+                    $paths
+                );
+            }
+
+            return;
+        }
+
+        $first = $prefix[0];
+        if (!isset($this->prefixesPsr0[$first][$prefix])) {
+            $this->prefixesPsr0[$first][$prefix] = $paths;
+
+            return;
+        }
+        if ($prepend) {
+            $this->prefixesPsr0[$first][$prefix] = array_merge(
+                $paths,
+                $this->prefixesPsr0[$first][$prefix]
+            );
+        } else {
+            $this->prefixesPsr0[$first][$prefix] = array_merge(
+                $this->prefixesPsr0[$first][$prefix],
+                $paths
+            );
+        }
+    }
+
+    /**
+     * Registers a set of PSR-4 directories for a given namespace, either
+     * appending or prepending to the ones previously set for this namespace.
+     *
+     * @param string              $prefix  The prefix/namespace, with trailing '\\'
+     * @param list<string>|string $paths   The PSR-4 base directories
+     * @param bool                $prepend Whether to prepend the directories
+     *
+     * @throws \InvalidArgumentException
+     *
+     * @return void
+     */
+    public function addPsr4($prefix, $paths, $prepend = false)
+    {
+        $paths = (array) $paths;
+        if (!$prefix) {
+            // Register directories for the root namespace.
+            if ($prepend) {
+                $this->fallbackDirsPsr4 = array_merge(
+                    $paths,
+                    $this->fallbackDirsPsr4
+                );
+            } else {
+                $this->fallbackDirsPsr4 = array_merge(
+                    $this->fallbackDirsPsr4,
+                    $paths
+                );
+            }
+        } elseif (!isset($this->prefixDirsPsr4[$prefix])) {
+            // Register directories for a new namespace.
+            $length = strlen($prefix);
+            if ('\\' !== $prefix[$length - 1]) {
+                throw new \InvalidArgumentException("A non-empty PSR-4 prefix must end with a namespace separator.");
+            }
+            $this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;
+            $this->prefixDirsPsr4[$prefix] = $paths;
+        } elseif ($prepend) {
+            // Prepend directories for an already registered namespace.
+            $this->prefixDirsPsr4[$prefix] = array_merge(
+                $paths,
+                $this->prefixDirsPsr4[$prefix]
+            );
+        } else {
+            // Append directories for an already registered namespace.
+            $this->prefixDirsPsr4[$prefix] = array_merge(
+                $this->prefixDirsPsr4[$prefix],
+                $paths
+            );
+        }
+    }
+
+    /**
+     * Registers a set of PSR-0 directories for a given prefix,
+     * replacing any others previously set for this prefix.
+     *
+     * @param string              $prefix The prefix
+     * @param list<string>|string $paths  The PSR-0 base directories
+     *
+     * @return void
+     */
+    public function set($prefix, $paths)
+    {
+        if (!$prefix) {
+            $this->fallbackDirsPsr0 = (array) $paths;
+        } else {
+            $this->prefixesPsr0[$prefix[0]][$prefix] = (array) $paths;
+        }
+    }
+
+    /**
+     * Registers a set of PSR-4 directories for a given namespace,
+     * replacing any others previously set for this namespace.
+     *
+     * @param string              $prefix The prefix/namespace, with trailing '\\'
+     * @param list<string>|string $paths  The PSR-4 base directories
+     *
+     * @throws \InvalidArgumentException
+     *
+     * @return void
+     */
+    public function setPsr4($prefix, $paths)
+    {
+        if (!$prefix) {
+            $this->fallbackDirsPsr4 = (array) $paths;
+        } else {
+            $length = strlen($prefix);
+            if ('\\' !== $prefix[$length - 1]) {
+                throw new \InvalidArgumentException("A non-empty PSR-4 prefix must end with a namespace separator.");
+            }
+            $this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;
+            $this->prefixDirsPsr4[$prefix] = (array) $paths;
+        }
+    }
+
+    /**
+     * Turns on searching the include path for class files.
+     *
+     * @param bool $useIncludePath
+     *
+     * @return void
+     */
+    public function setUseIncludePath($useIncludePath)
+    {
+        $this->useIncludePath = $useIncludePath;
+    }
+
+    /**
+     * Can be used to check if the autoloader uses the include path to check
+     * for classes.
+     *
+     * @return bool
+     */
+    public function getUseIncludePath()
+    {
+        return $this->useIncludePath;
+    }
+
+    /**
+     * Turns off searching the prefix and fallback directories for classes
+     * that have not been registered with the class map.
+     *
+     * @param bool $classMapAuthoritative
+     *
+     * @return void
+     */
+    public function setClassMapAuthoritative($classMapAuthoritative)
+    {
+        $this->classMapAuthoritative = $classMapAuthoritative;
+    }
+
+    /**
+     * Should class lookup fail if not found in the current class map?
+     *
+     * @return bool
+     */
+    public function isClassMapAuthoritative()
+    {
+        return $this->classMapAuthoritative;
+    }
+
+    /**
+     * APCu prefix to use to cache found/not-found classes, if the extension is enabled.
+     *
+     * @param string|null $apcuPrefix
+     *
+     * @return void
+     */
+    public function setApcuPrefix($apcuPrefix)
+    {
+        $this->apcuPrefix = function_exists('apcu_fetch') && filter_var(ini_get('apc.enabled'), FILTER_VALIDATE_BOOLEAN) ? $apcuPrefix : null;
+    }
+
+    /**
+     * The APCu prefix in use, or null if APCu caching is not enabled.
+     *
+     * @return string|null
+     */
+    public function getApcuPrefix()
+    {
+        return $this->apcuPrefix;
+    }
+
+    /**
+     * Registers this instance as an autoloader.
+     *
+     * @param bool $prepend Whether to prepend the autoloader or not
+     *
+     * @return void
+     */
+    public function register($prepend = false)
+    {
+        spl_autoload_register(array($this, 'loadClass'), true, $prepend);
+
+        if (null === $this->vendorDir) {
+            return;
+        }
+
+        if ($prepend) {
+            self::$registeredLoaders = array($this->vendorDir => $this) + self::$registeredLoaders;
+        } else {
+            unset(self::$registeredLoaders[$this->vendorDir]);
+            self::$registeredLoaders[$this->vendorDir] = $this;
+        }
+    }
+
+    /**
+     * Unregisters this instance as an autoloader.
+     *
+     * @return void
+     */
+    public function unregister()
+    {
+        spl_autoload_unregister(array($this, 'loadClass'));
+
+        if (null !== $this->vendorDir) {
+            unset(self::$registeredLoaders[$this->vendorDir]);
+        }
+    }
+
+    /**
+     * Loads the given class or interface.
+     *
+     * @param  string    $class The name of the class
+     * @return true|null True if loaded, null otherwise
+     */
+    public function loadClass($class)
+    {
+        if ($file = $this->findFile($class)) {
+            $includeFile = self::$includeFile;
+            $includeFile($file);
+
+            return true;
+        }
+
+        return null;
+    }
+
+    /**
+     * Finds the path to the file where the class is defined.
+     *
+     * @param string $class The name of the class
+     *
+     * @return string|false The path if found, false otherwise
+     */
+    public function findFile($class)
+    {
+        // class map lookup
+        if (isset($this->classMap[$class])) {
+            return $this->classMap[$class];
+        }
+        if ($this->classMapAuthoritative || isset($this->missingClasses[$class])) {
+            return false;
+        }
+        if (null !== $this->apcuPrefix) {
+            $file = apcu_fetch($this->apcuPrefix.$class, $hit);
+            if ($hit) {
+                return $file;
+            }
+        }
+
+        $file = $this->findFileWithExtension($class, '.php');
+
+        // Search for Hack files if we are running on HHVM
+        if (false === $file && defined('HHVM_VERSION')) {
+            $file = $this->findFileWithExtension($class, '.hh');
+        }
+
+        if (null !== $this->apcuPrefix) {
+            apcu_add($this->apcuPrefix.$class, $file);
+        }
+
+        if (false === $file) {
+            // Remember that this class does not exist.
+            $this->missingClasses[$class] = true;
+        }
+
+        return $file;
+    }
+
+    /**
+     * Returns the currently registered loaders keyed by their corresponding vendor directories.
+     *
+     * @return array<string, self>
+     */
+    public static function getRegisteredLoaders()
+    {
+        return self::$registeredLoaders;
+    }
+
+    /**
+     * @param  string       $class
+     * @param  string       $ext
+     * @return string|false
+     */
+    private function findFileWithExtension($class, $ext)
+    {
+        // PSR-4 lookup
+        $logicalPathPsr4 = strtr($class, '\\', DIRECTORY_SEPARATOR) . $ext;
+
+        $first = $class[0];
+        if (isset($this->prefixLengthsPsr4[$first])) {
+            $subPath = $class;
+            while (false !== $lastPos = strrpos($subPath, '\\')) {
+                $subPath = substr($subPath, 0, $lastPos);
+                $search = $subPath . '\\';
+                if (isset($this->prefixDirsPsr4[$search])) {
+                    $pathEnd = DIRECTORY_SEPARATOR . substr($logicalPathPsr4, $lastPos + 1);
+                    foreach ($this->prefixDirsPsr4[$search] as $dir) {
+                        if (file_exists($file = $dir . $pathEnd)) {
+                            return $file;
+                        }
+                    }
+                }
+            }
+        }
+
+        // PSR-4 fallback dirs
+        foreach ($this->fallbackDirsPsr4 as $dir) {
+            if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr4)) {
+                return $file;
+            }
+        }
+
+        // PSR-0 lookup
+        if (false !== $pos = strrpos($class, '\\')) {
+            // namespaced class name
+            $logicalPathPsr0 = substr($logicalPathPsr4, 0, $pos + 1)
+                . strtr(substr($logicalPathPsr4, $pos + 1), '_', DIRECTORY_SEPARATOR);
+        } else {
+            // PEAR-like class name
+            $logicalPathPsr0 = strtr($class, '_', DIRECTORY_SEPARATOR) . $ext;
+        }
+
+        if (isset($this->prefixesPsr0[$first])) {
+            foreach ($this->prefixesPsr0[$first] as $prefix => $dirs) {
+                if (0 === strpos($class, $prefix)) {
+                    foreach ($dirs as $dir) {
+                        if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
+                            return $file;
+                        }
+                    }
+                }
+            }
+        }
+
+        // PSR-0 fallback dirs
+        foreach ($this->fallbackDirsPsr0 as $dir) {
+            if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
+                return $file;
+            }
+        }
+
+        // PSR-0 include paths.
+        if ($this->useIncludePath && $file = stream_resolve_include_path($logicalPathPsr0)) {
+            return $file;
+        }
+
+        return false;
+    }
+
+    /**
+     * @return void
+     */
+    private static function initializeIncludeClosure()
+    {
+        if (self::$includeFile !== null) {
+            return;
+        }
+
+        /**
+         * Scope isolated include.
+         *
+         * Prevents access to $this/self from included files.
+         *
+         * @param  string $file
+         * @return void
+         */
+        self::$includeFile = \Closure::bind(static function($file) {
+            include $file;
+        }, null, null);
+    }
+}
diff --git a/vendor/composer/InstalledVersions.php b/vendor/composer/InstalledVersions.php
new file mode 100644
index 0000000..2052022
--- /dev/null
+++ b/vendor/composer/InstalledVersions.php
@@ -0,0 +1,396 @@
+<?php
+
+/*
+ * This file is part of Composer.
+ *
+ * (c) Nils Adermann <naderman@naderman.de>
+ *     Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Composer;
+
+use Composer\Autoload\ClassLoader;
+use Composer\Semver\VersionParser;
+
+/**
+ * This class is copied in every Composer installed project and available to all
+ *
+ * See also https://getcomposer.org/doc/07-runtime.md#installed-versions
+ *
+ * To require its presence, you can require `composer-runtime-api ^2.0`
+ *
+ * @final
+ */
+class InstalledVersions
+{
+    /**
+     * @var string|null if set (by reflection by Composer), this should be set to the path where this class is being copied to
+     * @internal
+     */
+    private static $selfDir = null;
+
+    /**
+     * @var mixed[]|null
+     * @psalm-var array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>}|array{}|null
+     */
+    private static $installed;
+
+    /**
+     * @var bool
+     */
+    private static $installedIsLocalDir;
+
+    /**
+     * @var bool|null
+     */
+    private static $canGetVendors;
+
+    /**
+     * @var array[]
+     * @psalm-var array<string, array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>}>
+     */
+    private static $installedByVendor = array();
+
+    /**
+     * Returns a list of all package names which are present, either by being installed, replaced or provided
+     *
+     * @return string[]
+     * @psalm-return list<string>
+     */
+    public static function getInstalledPackages()
+    {
+        $packages = array();
+        foreach (self::getInstalled() as $installed) {
+            $packages[] = array_keys($installed['versions']);
+        }
+
+        if (1 === \count($packages)) {
+            return $packages[0];
+        }
+
+        return array_keys(array_flip(\call_user_func_array('array_merge', $packages)));
+    }
+
+    /**
+     * Returns a list of all package names with a specific type e.g. 'library'
+     *
+     * @param  string   $type
+     * @return string[]
+     * @psalm-return list<string>
+     */
+    public static function getInstalledPackagesByType($type)
+    {
+        $packagesByType = array();
+
+        foreach (self::getInstalled() as $installed) {
+            foreach ($installed['versions'] as $name => $package) {
+                if (isset($package['type']) && $package['type'] === $type) {
+                    $packagesByType[] = $name;
+                }
+            }
+        }
+
+        return $packagesByType;
+    }
+
+    /**
+     * Checks whether the given package is installed
+     *
+     * This also returns true if the package name is provided or replaced by another package
+     *
+     * @param  string $packageName
+     * @param  bool   $includeDevRequirements
+     * @return bool
+     */
+    public static function isInstalled($packageName, $includeDevRequirements = true)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (isset($installed['versions'][$packageName])) {
+                return $includeDevRequirements || !isset($installed['versions'][$packageName]['dev_requirement']) || $installed['versions'][$packageName]['dev_requirement'] === false;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Checks whether the given package satisfies a version constraint
+     *
+     * e.g. If you want to know whether version 2.3+ of package foo/bar is installed, you would call:
+     *
+     *   Composer\InstalledVersions::satisfies(new VersionParser, 'foo/bar', '^2.3')
+     *
+     * @param  VersionParser $parser      Install composer/semver to have access to this class and functionality
+     * @param  string        $packageName
+     * @param  string|null   $constraint  A version constraint to check for, if you pass one you have to make sure composer/semver is required by your package
+     * @return bool
+     */
+    public static function satisfies(VersionParser $parser, $packageName, $constraint)
+    {
+        $constraint = $parser->parseConstraints((string) $constraint);
+        $provided = $parser->parseConstraints(self::getVersionRanges($packageName));
+
+        return $provided->matches($constraint);
+    }
+
+    /**
+     * Returns a version constraint representing all the range(s) which are installed for a given package
+     *
+     * It is easier to use this via isInstalled() with the $constraint argument if you need to check
+     * whether a given version of a package is installed, and not just whether it exists
+     *
+     * @param  string $packageName
+     * @return string Version constraint usable with composer/semver
+     */
+    public static function getVersionRanges($packageName)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (!isset($installed['versions'][$packageName])) {
+                continue;
+            }
+
+            $ranges = array();
+            if (isset($installed['versions'][$packageName]['pretty_version'])) {
+                $ranges[] = $installed['versions'][$packageName]['pretty_version'];
+            }
+            if (array_key_exists('aliases', $installed['versions'][$packageName])) {
+                $ranges = array_merge($ranges, $installed['versions'][$packageName]['aliases']);
+            }
+            if (array_key_exists('replaced', $installed['versions'][$packageName])) {
+                $ranges = array_merge($ranges, $installed['versions'][$packageName]['replaced']);
+            }
+            if (array_key_exists('provided', $installed['versions'][$packageName])) {
+                $ranges = array_merge($ranges, $installed['versions'][$packageName]['provided']);
+            }
+
+            return implode(' || ', $ranges);
+        }
+
+        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
+    }
+
+    /**
+     * @param  string      $packageName
+     * @return string|null If the package is being replaced or provided but is not really installed, null will be returned as version, use satisfies or getVersionRanges if you need to know if a given version is present
+     */
+    public static function getVersion($packageName)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (!isset($installed['versions'][$packageName])) {
+                continue;
+            }
+
+            if (!isset($installed['versions'][$packageName]['version'])) {
+                return null;
+            }
+
+            return $installed['versions'][$packageName]['version'];
+        }
+
+        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
+    }
+
+    /**
+     * @param  string      $packageName
+     * @return string|null If the package is being replaced or provided but is not really installed, null will be returned as version, use satisfies or getVersionRanges if you need to know if a given version is present
+     */
+    public static function getPrettyVersion($packageName)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (!isset($installed['versions'][$packageName])) {
+                continue;
+            }
+
+            if (!isset($installed['versions'][$packageName]['pretty_version'])) {
+                return null;
+            }
+
+            return $installed['versions'][$packageName]['pretty_version'];
+        }
+
+        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
+    }
+
+    /**
+     * @param  string      $packageName
+     * @return string|null If the package is being replaced or provided but is not really installed, null will be returned as reference
+     */
+    public static function getReference($packageName)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (!isset($installed['versions'][$packageName])) {
+                continue;
+            }
+
+            if (!isset($installed['versions'][$packageName]['reference'])) {
+                return null;
+            }
+
+            return $installed['versions'][$packageName]['reference'];
+        }
+
+        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
+    }
+
+    /**
+     * @param  string      $packageName
+     * @return string|null If the package is being replaced or provided but is not really installed, null will be returned as install path. Packages of type metapackages also have a null install path.
+     */
+    public static function getInstallPath($packageName)
+    {
+        foreach (self::getInstalled() as $installed) {
+            if (!isset($installed['versions'][$packageName])) {
+                continue;
+            }
+
+            return isset($installed['versions'][$packageName]['install_path']) ? $installed['versions'][$packageName]['install_path'] : null;
+        }
+
+        throw new \OutOfBoundsException('Package "' . $packageName . '" is not installed');
+    }
+
+    /**
+     * @return array
+     * @psalm-return array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}
+     */
+    public static function getRootPackage()
+    {
+        $installed = self::getInstalled();
+
+        return $installed[0]['root'];
+    }
+
+    /**
+     * Returns the raw installed.php data for custom implementations
+     *
+     * @deprecated Use getAllRawData() instead which returns all datasets for all autoloaders present in the process. getRawData only returns the first dataset loaded, which may not be what you expect.
+     * @return array[]
+     * @psalm-return array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>}
+     */
+    public static function getRawData()
+    {
+        @trigger_error('getRawData only returns the first dataset loaded, which may not be what you expect. Use getAllRawData() instead which returns all datasets for all autoloaders present in the process.', E_USER_DEPRECATED);
+
+        if (null === self::$installed) {
+            // only require the installed.php file if this file is loaded from its dumped location,
+            // and not from its source location in the composer/composer package, see https://github.com/composer/composer/issues/9937
+            if (substr(__DIR__, -8, 1) !== 'C') {
+                self::$installed = include __DIR__ . '/installed.php';
+            } else {
+                self::$installed = array();
+            }
+        }
+
+        return self::$installed;
+    }
+
+    /**
+     * Returns the raw data of all installed.php which are currently loaded for custom implementations
+     *
+     * @return array[]
+     * @psalm-return list<array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>}>
+     */
+    public static function getAllRawData()
+    {
+        return self::getInstalled();
+    }
+
+    /**
+     * Lets you reload the static array from another file
+     *
+     * This is only useful for complex integrations in which a project needs to use
+     * this class but then also needs to execute another project's autoloader in process,
+     * and wants to ensure both projects have access to their version of installed.php.
+     *
+     * A typical case would be PHPUnit, where it would need to make sure it reads all
+     * the data it needs from this class, then call reload() with
+     * `require $CWD/vendor/composer/installed.php` (or similar) as input to make sure
+     * the project in which it runs can then also use this class safely, without
+     * interference between PHPUnit's dependencies and the project's dependencies.
+     *
+     * @param  array[] $data A vendor/composer/installed.php data set
+     * @return void
+     *
+     * @psalm-param array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>} $data
+     */
+    public static function reload($data)
+    {
+        self::$installed = $data;
+        self::$installedByVendor = array();
+
+        // when using reload, we disable the duplicate protection to ensure that self::$installed data is
+        // always returned, but we cannot know whether it comes from the installed.php in __DIR__ or not,
+        // so we have to assume it does not, and that may result in duplicate data being returned when listing
+        // all installed packages for example
+        self::$installedIsLocalDir = false;
+    }
+
+    /**
+     * @return string
+     */
+    private static function getSelfDir()
+    {
+        if (self::$selfDir === null) {
+            self::$selfDir = strtr(__DIR__, '\\', '/');
+        }
+
+        return self::$selfDir;
+    }
+
+    /**
+     * @return array[]
+     * @psalm-return list<array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>}>
+     */
+    private static function getInstalled()
+    {
+        if (null === self::$canGetVendors) {
+            self::$canGetVendors = method_exists('Composer\Autoload\ClassLoader', 'getRegisteredLoaders');
+        }
+
+        $installed = array();
+        $copiedLocalDir = false;
+
+        if (self::$canGetVendors) {
+            $selfDir = self::getSelfDir();
+            foreach (ClassLoader::getRegisteredLoaders() as $vendorDir => $loader) {
+                $vendorDir = strtr($vendorDir, '\\', '/');
+                if (isset(self::$installedByVendor[$vendorDir])) {
+                    $installed[] = self::$installedByVendor[$vendorDir];
+                } elseif (is_file($vendorDir.'/composer/installed.php')) {
+                    /** @var array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>} $required */
+                    $required = require $vendorDir.'/composer/installed.php';
+                    self::$installedByVendor[$vendorDir] = $required;
+                    $installed[] = $required;
+                    if (self::$installed === null && $vendorDir.'/composer' === $selfDir) {
+                        self::$installed = $required;
+                        self::$installedIsLocalDir = true;
+                    }
+                }
+                if (self::$installedIsLocalDir && $vendorDir.'/composer' === $selfDir) {
+                    $copiedLocalDir = true;
+                }
+            }
+        }
+
+        if (null === self::$installed) {
+            // only require the installed.php file if this file is loaded from its dumped location,
+            // and not from its source location in the composer/composer package, see https://github.com/composer/composer/issues/9937
+            if (substr(__DIR__, -8, 1) !== 'C') {
+                /** @var array{root: array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}, versions: array<string, array{pretty_version?: string, version?: string, reference?: string|null, type?: string, install_path?: string, aliases?: string[], dev_requirement: bool, replaced?: string[], provided?: string[]}>} $required */
+                $required = require __DIR__ . '/installed.php';
+                self::$installed = $required;
+            } else {
+                self::$installed = array();
+            }
+        }
+
+        if (self::$installed !== array() && !$copiedLocalDir) {
+            $installed[] = self::$installed;
+        }
+
+        return $installed;
+    }
+}
diff --git a/vendor/composer/LICENSE b/vendor/composer/LICENSE
new file mode 100644
index 0000000..f27399a
--- /dev/null
+++ b/vendor/composer/LICENSE
@@ -0,0 +1,21 @@
+
+Copyright (c) Nils Adermann, Jordi Boggiano
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
diff --git a/vendor/composer/autoload_classmap.php b/vendor/composer/autoload_classmap.php
new file mode 100644
index 0000000..0fb0a2c
--- /dev/null
+++ b/vendor/composer/autoload_classmap.php
@@ -0,0 +1,10 @@
+<?php
+
+// autoload_classmap.php @generated by Composer
+
+$vendorDir = dirname(__DIR__);
+$baseDir = dirname($vendorDir);
+
+return array(
+    'Composer\\InstalledVersions' => $vendorDir . '/composer/InstalledVersions.php',
+);
diff --git a/vendor/composer/autoload_namespaces.php b/vendor/composer/autoload_namespaces.php
new file mode 100644
index 0000000..0616226
--- /dev/null
+++ b/vendor/composer/autoload_namespaces.php
@@ -0,0 +1,11 @@
+<?php
+
+// autoload_namespaces.php @generated by Composer
+
+$vendorDir = dirname(__DIR__);
+$baseDir = dirname($vendorDir);
+
+return array(
+    'ParsedownExtra' => array($vendorDir . '/erusev/parsedown-extra'),
+    'Parsedown' => array($vendorDir . '/erusev/parsedown'),
+);
diff --git a/vendor/composer/autoload_psr4.php b/vendor/composer/autoload_psr4.php
new file mode 100644
index 0000000..3890ddc
--- /dev/null
+++ b/vendor/composer/autoload_psr4.php
@@ -0,0 +1,9 @@
+<?php
+
+// autoload_psr4.php @generated by Composer
+
+$vendorDir = dirname(__DIR__);
+$baseDir = dirname($vendorDir);
+
+return array(
+);
diff --git a/vendor/composer/autoload_real.php b/vendor/composer/autoload_real.php
new file mode 100644
index 0000000..a8c01a5
--- /dev/null
+++ b/vendor/composer/autoload_real.php
@@ -0,0 +1,38 @@
+<?php
+
+// autoload_real.php @generated by Composer
+
+class ComposerAutoloaderInit7e1495fb2e8a2820ba6766561cd0f083
+{
+    private static $loader;
+
+    public static function loadClassLoader($class)
+    {
+        if ('Composer\Autoload\ClassLoader' === $class) {
+            require __DIR__ . '/ClassLoader.php';
+        }
+    }
+
+    /**
+     * @return \Composer\Autoload\ClassLoader
+     */
+    public static function getLoader()
+    {
+        if (null !== self::$loader) {
+            return self::$loader;
+        }
+
+        require __DIR__ . '/platform_check.php';
+
+        spl_autoload_register(array('ComposerAutoloaderInit7e1495fb2e8a2820ba6766561cd0f083', 'loadClassLoader'), true, true);
+        self::$loader = $loader = new \Composer\Autoload\ClassLoader(\dirname(__DIR__));
+        spl_autoload_unregister(array('ComposerAutoloaderInit7e1495fb2e8a2820ba6766561cd0f083', 'loadClassLoader'));
+
+        require __DIR__ . '/autoload_static.php';
+        call_user_func(\Composer\Autoload\ComposerStaticInit7e1495fb2e8a2820ba6766561cd0f083::getInitializer($loader));
+
+        $loader->register(true);
+
+        return $loader;
+    }
+}
diff --git a/vendor/composer/autoload_static.php b/vendor/composer/autoload_static.php
new file mode 100644
index 0000000..4bf27d8
--- /dev/null
+++ b/vendor/composer/autoload_static.php
@@ -0,0 +1,35 @@
+<?php
+
+// autoload_static.php @generated by Composer
+
+namespace Composer\Autoload;
+
+class ComposerStaticInit7e1495fb2e8a2820ba6766561cd0f083
+{
+    public static $prefixesPsr0 = array (
+        'P' =>
+        array (
+            'ParsedownExtra' =>
+            array (
+                0 => __DIR__ . '/..' . '/erusev/parsedown-extra',
+            ),
+            'Parsedown' =>
+            array (
+                0 => __DIR__ . '/..' . '/erusev/parsedown',
+            ),
+        ),
+    );
+
+    public static $classMap = array (
+        'Composer\\InstalledVersions' => __DIR__ . '/..' . '/composer/InstalledVersions.php',
+    );
+
+    public static function getInitializer(ClassLoader $loader)
+    {
+        return \Closure::bind(function () use ($loader) {
+            $loader->prefixesPsr0 = ComposerStaticInit7e1495fb2e8a2820ba6766561cd0f083::$prefixesPsr0;
+            $loader->classMap = ComposerStaticInit7e1495fb2e8a2820ba6766561cd0f083::$classMap;
+
+        }, null, ClassLoader::class);
+    }
+}
diff --git a/vendor/composer/installed.json b/vendor/composer/installed.json
new file mode 100644
index 0000000..b92c401
--- /dev/null
+++ b/vendor/composer/installed.json
@@ -0,0 +1,119 @@
+{
+    "packages": [
+        {
+            "name": "erusev/parsedown",
+            "version": "1.8.0",
+            "version_normalized": "1.8.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/erusev/parsedown.git",
+                "reference": "96baaad00f71ba04d76e45b4620f54d3beabd6f7"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/erusev/parsedown/zipball/96baaad00f71ba04d76e45b4620f54d3beabd6f7",
+                "reference": "96baaad00f71ba04d76e45b4620f54d3beabd6f7",
+                "shasum": ""
+            },
+            "require": {
+                "ext-mbstring": "*",
+                "php": ">=7.1"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^7.5|^8.5|^9.6"
+            },
+            "time": "2026-02-16T11:41:01+00:00",
+            "type": "library",
+            "installation-source": "dist",
+            "autoload": {
+                "psr-0": {
+                    "Parsedown": ""
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Emanuil Rusev",
+                    "email": "hello@erusev.com",
+                    "homepage": "http://erusev.com"
+                }
+            ],
+            "description": "Parser for Markdown.",
+            "homepage": "http://parsedown.org",
+            "keywords": [
+                "markdown",
+                "parser"
+            ],
+            "support": {
+                "issues": "https://github.com/erusev/parsedown/issues",
+                "source": "https://github.com/erusev/parsedown/tree/1.8.0"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/erusev",
+                    "type": "github"
+                }
+            ],
+            "install-path": "../erusev/parsedown"
+        },
+        {
+            "name": "erusev/parsedown-extra",
+            "version": "0.8.1",
+            "version_normalized": "0.8.1.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/erusev/parsedown-extra.git",
+                "reference": "91ac3ff98f0cea243bdccc688df43810f044dcef"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/erusev/parsedown-extra/zipball/91ac3ff98f0cea243bdccc688df43810f044dcef",
+                "reference": "91ac3ff98f0cea243bdccc688df43810f044dcef",
+                "shasum": ""
+            },
+            "require": {
+                "erusev/parsedown": "^1.7.4"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^4.8.35"
+            },
+            "time": "2019-12-30T23:20:37+00:00",
+            "type": "library",
+            "installation-source": "dist",
+            "autoload": {
+                "psr-0": {
+                    "ParsedownExtra": ""
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Emanuil Rusev",
+                    "email": "hello@erusev.com",
+                    "homepage": "http://erusev.com"
+                }
+            ],
+            "description": "An extension of Parsedown that adds support for Markdown Extra.",
+            "homepage": "https://github.com/erusev/parsedown-extra",
+            "keywords": [
+                "markdown",
+                "markdown extra",
+                "parsedown",
+                "parser"
+            ],
+            "support": {
+                "issues": "https://github.com/erusev/parsedown-extra/issues",
+                "source": "https://github.com/erusev/parsedown-extra/tree/0.8.x"
+            },
+            "install-path": "../erusev/parsedown-extra"
+        }
+    ],
+    "dev": true,
+    "dev-package-names": []
+}
diff --git a/vendor/composer/installed.php b/vendor/composer/installed.php
new file mode 100644
index 0000000..510d85b
--- /dev/null
+++ b/vendor/composer/installed.php
@@ -0,0 +1,41 @@
+<?php return array(
+    'root' => array(
+        'name' => '__root__',
+        'pretty_version' => 'dev-main',
+        'version' => 'dev-main',
+        'reference' => '83f577250deb40576ca6a1aa2866dd230d826776',
+        'type' => 'library',
+        'install_path' => __DIR__ . '/../../',
+        'aliases' => array(),
+        'dev' => true,
+    ),
+    'versions' => array(
+        '__root__' => array(
+            'pretty_version' => 'dev-main',
+            'version' => 'dev-main',
+            'reference' => '83f577250deb40576ca6a1aa2866dd230d826776',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../../',
+            'aliases' => array(),
+            'dev_requirement' => false,
+        ),
+        'erusev/parsedown' => array(
+            'pretty_version' => '1.8.0',
+            'version' => '1.8.0.0',
+            'reference' => '96baaad00f71ba04d76e45b4620f54d3beabd6f7',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../erusev/parsedown',
+            'aliases' => array(),
+            'dev_requirement' => false,
+        ),
+        'erusev/parsedown-extra' => array(
+            'pretty_version' => '0.8.1',
+            'version' => '0.8.1.0',
+            'reference' => '91ac3ff98f0cea243bdccc688df43810f044dcef',
+            'type' => 'library',
+            'install_path' => __DIR__ . '/../erusev/parsedown-extra',
+            'aliases' => array(),
+            'dev_requirement' => false,
+        ),
+    ),
+);
diff --git a/vendor/composer/platform_check.php b/vendor/composer/platform_check.php
new file mode 100644
index 0000000..3a099e4
--- /dev/null
+++ b/vendor/composer/platform_check.php
@@ -0,0 +1,25 @@
+<?php
+
+// platform_check.php @generated by Composer
+
+$issues = array();
+
+if (!(PHP_VERSION_ID >= 70100)) {
+    $issues[] = 'Your Composer dependencies require a PHP version ">= 7.1.0". You are running ' . PHP_VERSION . '.';
+}
+
+if ($issues) {
+    if (!headers_sent()) {
+        header('HTTP/1.1 500 Internal Server Error');
+    }
+    if (!ini_get('display_errors')) {
+        if (PHP_SAPI === 'cli' || PHP_SAPI === 'phpdbg') {
+            fwrite(STDERR, 'Composer detected issues in your platform:' . PHP_EOL.PHP_EOL . implode(PHP_EOL, $issues) . PHP_EOL.PHP_EOL);
+        } elseif (!headers_sent()) {
+            echo 'Composer detected issues in your platform:' . PHP_EOL.PHP_EOL . str_replace('You are running '.PHP_VERSION.'.', '', implode(PHP_EOL, $issues)) . PHP_EOL.PHP_EOL;
+        }
+    }
+    throw new \RuntimeException(
+        'Composer detected issues in your platform: ' . implode(' ', $issues)
+    );
+}
diff --git a/vendor/erusev/parsedown-extra/.travis.yml b/vendor/erusev/parsedown-extra/.travis.yml
new file mode 100644
index 0000000..d0b48f8
--- /dev/null
+++ b/vendor/erusev/parsedown-extra/.travis.yml
@@ -0,0 +1,30 @@
+language: php
+
+dist: trusty
+sudo: false
+
+matrix:
+  include:
+    - php: 5.3
+      dist: precise
+    - php: 5.4
+    - php: 5.5
+    - php: 5.6
+    - php: 7.0
+    - php: 7.1
+    - php: 7.2
+    - php: 7.3
+    - php: 7.4
+    - php: nightly
+  fast_finish: true
+  allow_failures:
+    - php: nightly
+    - php: hhvm-nightly
+
+install:
+  - composer install --prefer-source
+
+script:
+  - vendor/bin/phpunit
+  - vendor/bin/phpunit vendor/erusev/parsedown/test/CommonMarkTestWeak.php || true
+  - '[ -z "$TRAVIS_TAG" ] || [ "$TRAVIS_TAG" == "$(php -r "require(\"ParsedownExtra.php\"); echo ParsedownExtra::version;")" ]'
diff --git a/vendor/erusev/parsedown-extra/LICENSE.txt b/vendor/erusev/parsedown-extra/LICENSE.txt
new file mode 100644
index 0000000..baca86f
--- /dev/null
+++ b/vendor/erusev/parsedown-extra/LICENSE.txt
@@ -0,0 +1,20 @@
+The MIT License (MIT)
+
+Copyright (c) 2013 Emanuil Rusev, erusev.com
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\ No newline at end of file
diff --git a/vendor/erusev/parsedown-extra/ParsedownExtra.php b/vendor/erusev/parsedown-extra/ParsedownExtra.php
new file mode 100644
index 0000000..632ba84
--- /dev/null
+++ b/vendor/erusev/parsedown-extra/ParsedownExtra.php
@@ -0,0 +1,538 @@
+<?php
+
+#
+#
+# Parsedown Extra
+# https://github.com/erusev/parsedown-extra
+#
+# (c) Emanuil Rusev
+# http://erusev.com
+#
+# For the full license information, view the LICENSE file that was distributed
+# with this source code.
+#
+#
+
+class ParsedownExtra extends Parsedown
+{
+    # ~
+
+    const version = '0.8.1';
+
+    # ~
+
+    function __construct()
+    {
+        if (version_compare(parent::version, '1.7.4') < 0)
+        {
+            throw new Exception('ParsedownExtra requires a later version of Parsedown');
+        }
+
+        $this->BlockTypes[':'] []= 'DefinitionList';
+        $this->BlockTypes['*'] []= 'Abbreviation';
+
+        # identify footnote definitions before reference definitions
+        array_unshift($this->BlockTypes['['], 'Footnote');
+
+        # identify footnote markers before before links
+        array_unshift($this->InlineTypes['['], 'FootnoteMarker');
+    }
+
+    #
+    # ~
+
+    function text($text)
+    {
+        $markup = parent::text($text);
+
+        # merge consecutive dl elements
+
+        $markup = preg_replace('/<\/dl>\s+<dl>\s+/', '', $markup);
+
+        # add footnotes
+
+        if (isset($this->DefinitionData['Footnote']))
+        {
+            $Element = $this->buildFootnoteElement();
+
+            $markup .= "\n" . $this->element($Element);
+        }
+
+        return $markup;
+    }
+
+    #
+    # Blocks
+    #
+
+    #
+    # Abbreviation
+
+    protected function blockAbbreviation($Line)
+    {
+        if (preg_match('/^\*\[(.+?)\]:[ ]*(.+?)[ ]*$/', $Line['text'], $matches))
+        {
+            $this->DefinitionData['Abbreviation'][$matches[1]] = $matches[2];
+
+            $Block = array(
+                'hidden' => true,
+            );
+
+            return $Block;
+        }
+    }
+
+    #
+    # Footnote
+
+    protected function blockFootnote($Line)
+    {
+        if (preg_match('/^\[\^(.+?)\]:[ ]?(.*)$/', $Line['text'], $matches))
+        {
+            $Block = array(
+                'label' => $matches[1],
+                'text' => $matches[2],
+                'hidden' => true,
+            );
+
+            return $Block;
+        }
+    }
+
+    protected function blockFootnoteContinue($Line, $Block)
+    {
+        if ($Line['text'][0] === '[' and preg_match('/^\[\^(.+?)\]:/', $Line['text']))
+        {
+            return;
+        }
+
+        if (isset($Block['interrupted']))
+        {
+            if ($Line['indent'] >= 4)
+            {
+                $Block['text'] .= "\n\n" . $Line['text'];
+
+                return $Block;
+            }
+        }
+        else
+        {
+            $Block['text'] .= "\n" . $Line['text'];
+
+            return $Block;
+        }
+    }
+
+    protected function blockFootnoteComplete($Block)
+    {
+        $this->DefinitionData['Footnote'][$Block['label']] = array(
+            'text' => $Block['text'],
+            'count' => null,
+            'number' => null,
+        );
+
+        return $Block;
+    }
+
+    #
+    # Definition List
+
+    protected function blockDefinitionList($Line, $Block)
+    {
+        if ( ! isset($Block) or isset($Block['type']))
+        {
+            return;
+        }
+
+        $Element = array(
+            'name' => 'dl',
+            'handler' => 'elements',
+            'text' => array(),
+        );
+
+        $terms = explode("\n", $Block['element']['text']);
+
+        foreach ($terms as $term)
+        {
+            $Element['text'] []= array(
+                'name' => 'dt',
+                'handler' => 'line',
+                'text' => $term,
+            );
+        }
+
+        $Block['element'] = $Element;
+
+        $Block = $this->addDdElement($Line, $Block);
+
+        return $Block;
+    }
+
+    protected function blockDefinitionListContinue($Line, array $Block)
+    {
+        if ($Line['text'][0] === ':')
+        {
+            $Block = $this->addDdElement($Line, $Block);
+
+            return $Block;
+        }
+        else
+        {
+            if (isset($Block['interrupted']) and $Line['indent'] === 0)
+            {
+                return;
+            }
+
+            if (isset($Block['interrupted']))
+            {
+                $Block['dd']['handler'] = 'text';
+                $Block['dd']['text'] .= "\n\n";
+
+                unset($Block['interrupted']);
+            }
+
+            $text = substr($Line['body'], min($Line['indent'], 4));
+
+            $Block['dd']['text'] .= "\n" . $text;
+
+            return $Block;
+        }
+    }
+
+    #
+    # Header
+
+    protected function blockHeader($Line)
+    {
+        $Block = parent::blockHeader($Line);
+
+        if (! isset($Block)) {
+            return null;
+        }
+
+        if (preg_match('/[ #]*{('.$this->regexAttribute.'+)}[ ]*$/', $Block['element']['text'], $matches, PREG_OFFSET_CAPTURE))
+        {
+            $attributeString = $matches[1][0];
+
+            $Block['element']['attributes'] = $this->parseAttributeData($attributeString);
+
+            $Block['element']['text'] = substr($Block['element']['text'], 0, $matches[0][1]);
+        }
+
+        return $Block;
+    }
+
+    #
+    # Markup
+
+    protected function blockMarkupComplete($Block)
+    {
+        if ( ! isset($Block['void']))
+        {
+            $Block['markup'] = $this->processTag($Block['markup']);
+        }
+
+        return $Block;
+    }
+
+    #
+    # Setext
+
+    protected function blockSetextHeader($Line, array $Block = null)
+    {
+        $Block = parent::blockSetextHeader($Line, $Block);
+
+        if (! isset($Block)) {
+            return null;
+        }
+
+        if (preg_match('/[ ]*{('.$this->regexAttribute.'+)}[ ]*$/', $Block['element']['text'], $matches, PREG_OFFSET_CAPTURE))
+        {
+            $attributeString = $matches[1][0];
+
+            $Block['element']['attributes'] = $this->parseAttributeData($attributeString);
+
+            $Block['element']['text'] = substr($Block['element']['text'], 0, $matches[0][1]);
+        }
+
+        return $Block;
+    }
+
+    #
+    # Inline Elements
+    #
+
+    #
+    # Footnote Marker
+
+    protected function inlineFootnoteMarker($Excerpt)
+    {
+        if (preg_match('/^\[\^(.+?)\]/', $Excerpt['text'], $matches))
+        {
+            $name = $matches[1];
+
+            if ( ! isset($this->DefinitionData['Footnote'][$name]))
+            {
+                return;
+            }
+
+            $this->DefinitionData['Footnote'][$name]['count'] ++;
+
+            if ( ! isset($this->DefinitionData['Footnote'][$name]['number']))
+            {
+                $this->DefinitionData['Footnote'][$name]['number'] = ++ $this->footnoteCount; # » &
+            }
+
+            $Element = array(
+                'name' => 'sup',
+                'attributes' => array('id' => 'fnref'.$this->DefinitionData['Footnote'][$name]['count'].':'.$name),
+                'handler' => 'element',
+                'text' => array(
+                    'name' => 'a',
+                    'attributes' => array('href' => '#fn:'.$name, 'class' => 'footnote-ref'),
+                    'text' => $this->DefinitionData['Footnote'][$name]['number'],
+                ),
+            );
+
+            return array(
+                'extent' => strlen($matches[0]),
+                'element' => $Element,
+            );
+        }
+    }
+
+    private $footnoteCount = 0;
+
+    #
+    # Link
+
+    protected function inlineLink($Excerpt)
+    {
+        $Link = parent::inlineLink($Excerpt);
+
+        if (! isset($Link)) {
+            return null;
+        }
+
+        $remainder = substr($Excerpt['text'], $Link['extent']);
+
+        if (preg_match('/^[ ]*{('.$this->regexAttribute.'+)}/', $remainder, $matches))
+        {
+            $Link['element']['attributes'] += $this->parseAttributeData($matches[1]);
+
+            $Link['extent'] += strlen($matches[0]);
+        }
+
+        return $Link;
+    }
+
+    #
+    # ~
+    #
+
+    protected function unmarkedText($text)
+    {
+        $text = parent::unmarkedText($text);
+
+        if (isset($this->DefinitionData['Abbreviation']))
+        {
+            foreach ($this->DefinitionData['Abbreviation'] as $abbreviation => $meaning)
+            {
+                $pattern = '/\b'.preg_quote($abbreviation, '/').'\b/';
+
+                $text = preg_replace($pattern, '<abbr title="'.$meaning.'">'.$abbreviation.'</abbr>', $text);
+            }
+        }
+
+        return $text;
+    }
+
+    #
+    # Util Methods
+    #
+
+    protected function addDdElement(array $Line, array $Block)
+    {
+        $text = substr($Line['text'], 1);
+        $text = trim($text);
+
+        unset($Block['dd']);
+
+        $Block['dd'] = array(
+            'name' => 'dd',
+            'handler' => 'line',
+            'text' => $text,
+        );
+
+        if (isset($Block['interrupted']))
+        {
+            $Block['dd']['handler'] = 'text';
+
+            unset($Block['interrupted']);
+        }
+
+        $Block['element']['text'] []= & $Block['dd'];
+
+        return $Block;
+    }
+
+    protected function buildFootnoteElement()
+    {
+        $Element = array(
+            'name' => 'div',
+            'attributes' => array('class' => 'footnotes'),
+            'handler' => 'elements',
+            'text' => array(
+                array(
+                    'name' => 'hr',
+                ),
+                array(
+                    'name' => 'ol',
+                    'handler' => 'elements',
+                    'text' => array(),
+                ),
+            ),
+        );
+
+        uasort($this->DefinitionData['Footnote'], 'self::sortFootnotes');
+
+        foreach ($this->DefinitionData['Footnote'] as $definitionId => $DefinitionData)
+        {
+            if ( ! isset($DefinitionData['number']))
+            {
+                continue;
+            }
+
+            $text = $DefinitionData['text'];
+
+            $text = parent::text($text);
+
+            $numbers = range(1, $DefinitionData['count']);
+
+            $backLinksMarkup = '';
+
+            foreach ($numbers as $number)
+            {
+                $backLinksMarkup .= ' <a href="#fnref'.$number.':'.$definitionId.'" rev="footnote" class="footnote-backref">&#8617;</a>';
+            }
+
+            $backLinksMarkup = substr($backLinksMarkup, 1);
+
+            if (substr($text, - 4) === '</p>')
+            {
+                $backLinksMarkup = '&#160;'.$backLinksMarkup;
+
+                $text = substr_replace($text, $backLinksMarkup.'</p>', - 4);
+            }
+            else
+            {
+                $text .= "\n".'<p>'.$backLinksMarkup.'</p>';
+            }
+
+            $Element['text'][1]['text'] []= array(
+                'name' => 'li',
+                'attributes' => array('id' => 'fn:'.$definitionId),
+                'rawHtml' => "\n".$text."\n",
+            );
+        }
+
+        return $Element;
+    }
+
+    # ~
+
+    protected function parseAttributeData($attributeString)
+    {
+        $Data = array();
+
+        $attributes = preg_split('/[ ]+/', $attributeString, - 1, PREG_SPLIT_NO_EMPTY);
+
+        foreach ($attributes as $attribute)
+        {
+            if ($attribute[0] === '#')
+            {
+                $Data['id'] = substr($attribute, 1);
+            }
+            else # "."
+            {
+                $classes []= substr($attribute, 1);
+            }
+        }
+
+        if (isset($classes))
+        {
+            $Data['class'] = implode(' ', $classes);
+        }
+
+        return $Data;
+    }
+
+    # ~
+
+    protected function processTag($elementMarkup) # recursive
+    {
+        # http://stackoverflow.com/q/1148928/200145
+        libxml_use_internal_errors(true);
+
+        $DOMDocument = new DOMDocument;
+
+        # http://stackoverflow.com/q/11309194/200145
+        $elementMarkup = mb_convert_encoding($elementMarkup, 'HTML-ENTITIES', 'UTF-8');
+
+        # http://stackoverflow.com/q/4879946/200145
+        $DOMDocument->loadHTML($elementMarkup);
+        $DOMDocument->removeChild($DOMDocument->doctype);
+        $DOMDocument->replaceChild($DOMDocument->firstChild->firstChild->firstChild, $DOMDocument->firstChild);
+
+        $elementText = '';
+
+        if ($DOMDocument->documentElement->getAttribute('markdown') === '1')
+        {
+            foreach ($DOMDocument->documentElement->childNodes as $Node)
+            {
+                $elementText .= $DOMDocument->saveHTML($Node);
+            }
+
+            $DOMDocument->documentElement->removeAttribute('markdown');
+
+            $elementText = "\n".$this->text($elementText)."\n";
+        }
+        else
+        {
+            foreach ($DOMDocument->documentElement->childNodes as $Node)
+            {
+                $nodeMarkup = $DOMDocument->saveHTML($Node);
+
+                if ($Node instanceof DOMElement and ! in_array($Node->nodeName, $this->textLevelElements))
+                {
+                    $elementText .= $this->processTag($nodeMarkup);
+                }
+                else
+                {
+                    $elementText .= $nodeMarkup;
+                }
+            }
+        }
+
+        # because we don't want for markup to get encoded
+        $DOMDocument->documentElement->nodeValue = 'placeholder\x1A';
+
+        $markup = $DOMDocument->saveHTML($DOMDocument->documentElement);
+        $markup = str_replace('placeholder\x1A', $elementText, $markup);
+
+        return $markup;
+    }
+
+    # ~
+
+    protected function sortFootnotes($A, $B) # callback
+    {
+        return $A['number'] - $B['number'];
+    }
+
+    #
+    # Fields
+    #
+
+    protected $regexAttribute = '(?:[#.][-\w]+[ ]*)';
+}
diff --git a/vendor/erusev/parsedown-extra/README.md b/vendor/erusev/parsedown-extra/README.md
new file mode 100644
index 0000000..cee4b54
--- /dev/null
+++ b/vendor/erusev/parsedown-extra/README.md
@@ -0,0 +1,31 @@
+> You might also like [Caret](http://caret.io?ref=parsedown) - our Markdown editor for the Desktop.
+
+## Parsedown Extra
+
+[![Build Status](https://img.shields.io/travis/erusev/parsedown-extra/master.svg?style=flat-square)](https://travis-ci.org/erusev/parsedown-extra)
+
+An extension of [Parsedown](http://parsedown.org) that adds support for [Markdown Extra](https://michelf.ca/projects/php-markdown/extra/).
+
+[See Demo](http://parsedown.org/extra/)
+
+### Installation
+
+Include both `Parsedown.php` and `ParsedownExtra.php` or install [the composer package](https://packagist.org/packages/erusev/parsedown-extra).
+
+### Example
+
+``` php
+$Extra = new ParsedownExtra();
+
+echo $Extra->text('# Header {.sth}'); # prints: <h1 class="sth">Header</h1>
+```
+
+### Questions
+
+**Who uses Parsedown Extra?**
+
+[October CMS](http://octobercms.com/), [Bolt CMS](http://bolt.cm/), [Kirby CMS](http://getkirby.com/), [Grav CMS](http://getgrav.org/), [Statamic CMS](http://www.statamic.com/) and [more](https://www.versioneye.com/php/erusev:parsedown-extra/references).
+
+**How can I help?**
+
+Use it, star it, share it and in case you feel generous, [donate some money](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=528P3NZQMP8N2).
diff --git a/vendor/erusev/parsedown-extra/composer.json b/vendor/erusev/parsedown-extra/composer.json
new file mode 100644
index 0000000..317d147
--- /dev/null
+++ b/vendor/erusev/parsedown-extra/composer.json
@@ -0,0 +1,33 @@
+{
+    "name": "erusev/parsedown-extra",
+    "description": "An extension of Parsedown that adds support for Markdown Extra.",
+    "keywords": ["markdown", "markdown extra", "parser", "parsedown"],
+    "homepage": "https://github.com/erusev/parsedown-extra",
+    "type": "library",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Emanuil Rusev",
+            "email": "hello@erusev.com",
+            "homepage": "http://erusev.com"
+        }
+    ],
+    "require": {
+        "erusev/parsedown": "^1.7.4"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^4.8.35"
+    },
+    "autoload": {
+        "psr-0": {"ParsedownExtra": ""}
+    },
+    "autoload-dev": {
+        "psr-0": {
+            "TestParsedown": "test/",
+            "ParsedownExtraTest": "test/",
+            "ParsedownTest": "vendor/erusev/parsedown/test/",
+            "CommonMarkTest": "vendor/erusev/parsedown/test/",
+            "CommonMarkTestWeak": "vendor/erusev/parsedown/test/"
+        }
+    }
+}
diff --git a/vendor/erusev/parsedown-extra/phpunit.xml.dist b/vendor/erusev/parsedown-extra/phpunit.xml.dist
new file mode 100644
index 0000000..29880b5
--- /dev/null
+++ b/vendor/erusev/parsedown-extra/phpunit.xml.dist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit bootstrap="vendor/autoload.php" colors="true">
+	<testsuites>
+		<testsuite>
+			<file>test/ParsedownExtraTest.php</file>
+		</testsuite>
+	</testsuites>
+</phpunit>
diff --git a/vendor/erusev/parsedown-extra/test/ParsedownExtraTest.php b/vendor/erusev/parsedown-extra/test/ParsedownExtraTest.php
new file mode 100644
index 0000000..d2a6d23
--- /dev/null
+++ b/vendor/erusev/parsedown-extra/test/ParsedownExtraTest.php
@@ -0,0 +1,11 @@
+<?php
+
+class ParsedownExtraTest extends ParsedownTest
+{
+    protected function initDirs()
+    {
+        $dirs = parent::initDirs();
+        $dirs[] = __DIR__ . '/data/';
+        return $dirs;
+    }
+}
diff --git a/vendor/erusev/parsedown-extra/test/TestParsedown.php b/vendor/erusev/parsedown-extra/test/TestParsedown.php
new file mode 100644
index 0000000..5684c88
--- /dev/null
+++ b/vendor/erusev/parsedown-extra/test/TestParsedown.php
@@ -0,0 +1,9 @@
+<?php
+
+class TestParsedown extends ParsedownExtra
+{
+    public function getTextLevelElements()
+    {
+        return $this->textLevelElements;
+    }
+}
diff --git a/vendor/erusev/parsedown-extra/test/data/abbreviation.html b/vendor/erusev/parsedown-extra/test/data/abbreviation.html
new file mode 100644
index 0000000..9b3a45c
--- /dev/null
+++ b/vendor/erusev/parsedown-extra/test/data/abbreviation.html
@@ -0,0 +1,3 @@
+<p>The <abbr title="Hyper Text Markup Language">HTML</abbr> specification
+is maintained by the <abbr title="World Wide Web Consortium">W3C</abbr>.
+The abbreviation <abbr title="Markup Language">ML</abbr> is contained in the abbreviation <abbr title="Hyper Text Markup Language">HTML</abbr>.</p>
\ No newline at end of file
diff --git a/vendor/erusev/parsedown-extra/test/data/abbreviation.md b/vendor/erusev/parsedown-extra/test/data/abbreviation.md
new file mode 100644
index 0000000..4ac8f88
--- /dev/null
+++ b/vendor/erusev/parsedown-extra/test/data/abbreviation.md
@@ -0,0 +1,7 @@
+The HTML specification
+is maintained by the W3C.
+The abbreviation ML is contained in the abbreviation HTML.
+
+*[HTML]: Hyper Text Markup Language
+*[W3C]: World Wide Web Consortium
+*[ML]: Markup Language
\ No newline at end of file
diff --git a/vendor/erusev/parsedown-extra/test/data/compound_footnote.html b/vendor/erusev/parsedown-extra/test/data/compound_footnote.html
new file mode 100644
index 0000000..1a3848f
--- /dev/null
+++ b/vendor/erusev/parsedown-extra/test/data/compound_footnote.html
@@ -0,0 +1,18 @@
+<p>footnote <sup id="fnref1:1"><a href="#fn:1" class="footnote-ref">1</a></sup> and another one <sup id="fnref1:2"><a href="#fn:2" class="footnote-ref">2</a></sup></p>
+<div class="footnotes">
+<hr />
+<ol>
+<li id="fn:1">
+<p>line 1
+line 2</p>
+<blockquote>
+<p>quote</p>
+</blockquote>
+<p>another paragraph&#160;<a href="#fnref1:1" rev="footnote" class="footnote-backref">&#8617;</a></p>
+</li>
+<li id="fn:2">
+<p>paragraph</p>
+<p>another paragraph&#160;<a href="#fnref1:2" rev="footnote" class="footnote-backref">&#8617;</a></p>
+</li>
+</ol>
+</div>
\ No newline at end of file
diff --git a/vendor/erusev/parsedown-extra/test/data/compound_footnote.md b/vendor/erusev/parsedown-extra/test/data/compound_footnote.md
new file mode 100644
index 0000000..5bca3c7
--- /dev/null
+++ b/vendor/erusev/parsedown-extra/test/data/compound_footnote.md
@@ -0,0 +1,14 @@
+footnote [^1] and another one [^2]
+
+[^1]: line 1
+      line 2
+
+    > quote
+
+    another paragraph
+      
+[^2]:
+    paragraph
+    
+    another paragraph
+    
\ No newline at end of file
diff --git a/vendor/erusev/parsedown-extra/test/data/definition_list.html b/vendor/erusev/parsedown-extra/test/data/definition_list.html
new file mode 100644
index 0000000..2567dc1
--- /dev/null
+++ b/vendor/erusev/parsedown-extra/test/data/definition_list.html
@@ -0,0 +1,17 @@
+<dl>
+<dt>Term 1</dt>
+<dd>one</dd>
+<dd>two
+extra line</dd>
+<dt>Term 2</dt>
+<dd><p>lazy
+line</p></dd>
+<dd><p>multiple</p>
+<p>paragraphs</p></dd>
+<dd><p>nested</p>
+<pre><code>code block</code></pre>
+<blockquote>
+<p>quote
+block</p>
+</blockquote></dd>
+</dl>
\ No newline at end of file
diff --git a/vendor/erusev/parsedown-extra/test/data/definition_list.md b/vendor/erusev/parsedown-extra/test/data/definition_list.md
new file mode 100644
index 0000000..ec0ee03
--- /dev/null
+++ b/vendor/erusev/parsedown-extra/test/data/definition_list.md
@@ -0,0 +1,20 @@
+Term 1
+:   one
+:   two
+    extra line
+
+Term 2
+
+:   lazy
+line
+
+:   multiple
+
+    paragraphs
+
+:   nested
+
+        code block
+
+    > quote
+    > block
\ No newline at end of file
diff --git a/vendor/erusev/parsedown-extra/test/data/footnote.html b/vendor/erusev/parsedown-extra/test/data/footnote.html
new file mode 100644
index 0000000..d0ba76c
--- /dev/null
+++ b/vendor/erusev/parsedown-extra/test/data/footnote.html
@@ -0,0 +1,20 @@
+<p>first <sup id="fnref1:1"><a href="#fn:1" class="footnote-ref">1</a></sup> second <sup id="fnref1:2"><a href="#fn:2" class="footnote-ref">2</a></sup>.</p>
+<p>first <sup id="fnref1:a"><a href="#fn:a" class="footnote-ref">3</a></sup> second <sup id="fnref1:b"><a href="#fn:b" class="footnote-ref">4</a></sup>.</p>
+<p>second time <sup id="fnref2:1"><a href="#fn:1" class="footnote-ref">1</a></sup></p>
+<div class="footnotes">
+<hr />
+<ol>
+<li id="fn:1">
+<p>one&#160;<a href="#fnref1:1" rev="footnote" class="footnote-backref">&#8617;</a> <a href="#fnref2:1" rev="footnote" class="footnote-backref">&#8617;</a></p>
+</li>
+<li id="fn:2">
+<p>two&#160;<a href="#fnref1:2" rev="footnote" class="footnote-backref">&#8617;</a></p>
+</li>
+<li id="fn:a">
+<p>one&#160;<a href="#fnref1:a" rev="footnote" class="footnote-backref">&#8617;</a></p>
+</li>
+<li id="fn:b">
+<p>two&#160;<a href="#fnref1:b" rev="footnote" class="footnote-backref">&#8617;</a></p>
+</li>
+</ol>
+</div>
\ No newline at end of file
diff --git a/vendor/erusev/parsedown-extra/test/data/footnote.md b/vendor/erusev/parsedown-extra/test/data/footnote.md
new file mode 100644
index 0000000..07d7010
--- /dev/null
+++ b/vendor/erusev/parsedown-extra/test/data/footnote.md
@@ -0,0 +1,11 @@
+first [^1] second [^2].
+
+[^1]: one
+[^2]: two
+
+first [^a] second [^b].
+
+[^a]: one
+[^b]: two
+
+second time [^1]
\ No newline at end of file
diff --git a/vendor/erusev/parsedown-extra/test/data/markdown_inside_markup.html b/vendor/erusev/parsedown-extra/test/data/markdown_inside_markup.html
new file mode 100644
index 0000000..27da259
--- /dev/null
+++ b/vendor/erusev/parsedown-extra/test/data/markdown_inside_markup.html
@@ -0,0 +1,25 @@
+<div class="example">
+<p><em>markdown</em></p>
+<p>This is another paragraph. It contains <em>inline markup</em>.</p>
+<div>
+_no markdown_
+</div>
+</div>
+<hr />
+<div>
+<p><em>markdown</em></p>
+<div>
+<p><em>markdown</em></p>
+</div>
+</div>
+<hr />
+<div>
+_no markdown_
+<div>
+<p><em>markdown</em></p>
+</div>
+</div>
+<hr />
+<div markdown="0">
+_no markdown_
+</div>
\ No newline at end of file
diff --git a/vendor/erusev/parsedown-extra/test/data/markdown_inside_markup.md b/vendor/erusev/parsedown-extra/test/data/markdown_inside_markup.md
new file mode 100644
index 0000000..dbb85d6
--- /dev/null
+++ b/vendor/erusev/parsedown-extra/test/data/markdown_inside_markup.md
@@ -0,0 +1,32 @@
+<div class="example" markdown="1">
+_markdown_
+
+This is another paragraph. It contains <em>inline markup</em>.
+<div>
+_no markdown_
+</div>
+</div>
+
+---
+
+<div markdown="1">
+_markdown_
+<div markdown="1">
+_markdown_
+</div>
+</div>
+
+---
+
+<div>
+_no markdown_
+<div markdown="1">
+_markdown_
+</div>
+</div>
+
+---
+
+<div markdown="0">
+_no markdown_
+</div>
\ No newline at end of file
diff --git a/vendor/erusev/parsedown-extra/test/data/special_attributes.html b/vendor/erusev/parsedown-extra/test/data/special_attributes.html
new file mode 100644
index 0000000..cafa311
--- /dev/null
+++ b/vendor/erusev/parsedown-extra/test/data/special_attributes.html
@@ -0,0 +1,6 @@
+<h1 id="header1">Header 1</h1>
+<h2 id="header2">Header 2</h2>
+<h2 class="main">The Site</h2>
+<h2 id="the-site" class="main shine">The Site</h2>
+<p><a href="http://parsedown.org" id="link" class="primary upper-case">link</a></p>
+<p><img src="/md.png" alt="logo" id="logo" class="big" /></p>
\ No newline at end of file
diff --git a/vendor/erusev/parsedown-extra/test/data/special_attributes.md b/vendor/erusev/parsedown-extra/test/data/special_attributes.md
new file mode 100644
index 0000000..01f29fc
--- /dev/null
+++ b/vendor/erusev/parsedown-extra/test/data/special_attributes.md
@@ -0,0 +1,12 @@
+Header 1 {#header1}
+========
+
+## Header 2 ## {#header2}
+
+## The Site ## {.main}
+
+## The Site ## {.main .shine #the-site}
+
+[link](http://parsedown.org) {.primary #link .upper-case}
+
+![logo](/md.png) {#logo .big}
\ No newline at end of file
diff --git a/vendor/erusev/parsedown/.github/workflows/unit-tests.yaml b/vendor/erusev/parsedown/.github/workflows/unit-tests.yaml
new file mode 100644
index 0000000..c00148d
--- /dev/null
+++ b/vendor/erusev/parsedown/.github/workflows/unit-tests.yaml
@@ -0,0 +1,37 @@
+on:
+    - push
+    - pull_request
+
+jobs:
+    phpunit:
+        runs-on: ubuntu-latest
+
+        strategy:
+            matrix:
+                php:
+                    - '7.1'
+                    - '7.2'
+                    - '7.3'
+                    - '7.4'
+                    - '8.0'
+                    - '8.1'
+                    - '8.2'
+                    - '8.3'
+                    - '8.4'
+
+        steps:
+            - name: Checkout the source code
+              uses: actions/checkout@v4
+
+            - name: Set up PHP
+              uses: shivammathur/setup-php@v2
+              with:
+                  php-version: '${{ matrix.php }}'
+
+            - name: Install dependencies
+              run: composer install
+
+            - name: Run tests
+              run: |
+                  vendor/bin/phpunit
+                  vendor/bin/phpunit test/CommonMarkTestWeak.php || true
diff --git a/vendor/erusev/parsedown/LICENSE.txt b/vendor/erusev/parsedown/LICENSE.txt
new file mode 100644
index 0000000..8e7c764
--- /dev/null
+++ b/vendor/erusev/parsedown/LICENSE.txt
@@ -0,0 +1,20 @@
+The MIT License (MIT)
+
+Copyright (c) 2013-2018 Emanuil Rusev, erusev.com
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/vendor/erusev/parsedown/Parsedown.php b/vendor/erusev/parsedown/Parsedown.php
new file mode 100644
index 0000000..2f01d5c
--- /dev/null
+++ b/vendor/erusev/parsedown/Parsedown.php
@@ -0,0 +1,1995 @@
+<?php
+
+#
+#
+# Parsedown
+# http://parsedown.org
+#
+# (c) Emanuil Rusev
+# http://erusev.com
+#
+# For the full license information, view the LICENSE file that was distributed
+# with this source code.
+#
+#
+
+class Parsedown
+{
+    # ~
+
+    const version = '1.8.0';
+
+    # ~
+
+    function text($text)
+    {
+        $Elements = $this->textElements($text);
+
+        # convert to markup
+        $markup = $this->elements($Elements);
+
+        # trim line breaks
+        $markup = trim($markup, "\n");
+
+        return $markup;
+    }
+
+    protected function textElements($text)
+    {
+        # make sure no definitions are set
+        $this->DefinitionData = array();
+
+        # standardize line breaks
+        $text = str_replace(array("\r\n", "\r"), "\n", $text);
+
+        # remove surrounding line breaks
+        $text = trim($text, "\n");
+
+        # split text into lines
+        $lines = explode("\n", $text);
+
+        # iterate through lines to identify blocks
+        return $this->linesElements($lines);
+    }
+
+    #
+    # Setters
+    #
+
+    function setBreaksEnabled($breaksEnabled)
+    {
+        $this->breaksEnabled = $breaksEnabled;
+
+        return $this;
+    }
+
+    protected $breaksEnabled;
+
+    function setMarkupEscaped($markupEscaped)
+    {
+        $this->markupEscaped = $markupEscaped;
+
+        return $this;
+    }
+
+    protected $markupEscaped;
+
+    function setUrlsLinked($urlsLinked)
+    {
+        $this->urlsLinked = $urlsLinked;
+
+        return $this;
+    }
+
+    protected $urlsLinked = true;
+
+    function setSafeMode($safeMode)
+    {
+        $this->safeMode = (bool) $safeMode;
+
+        return $this;
+    }
+
+    protected $safeMode;
+
+    function setStrictMode($strictMode)
+    {
+        $this->strictMode = (bool) $strictMode;
+
+        return $this;
+    }
+
+    protected $strictMode;
+
+    protected $safeLinksWhitelist = array(
+        'http://',
+        'https://',
+        'ftp://',
+        'ftps://',
+        'mailto:',
+        'tel:',
+        'data:image/png;base64,',
+        'data:image/gif;base64,',
+        'data:image/jpeg;base64,',
+        'irc:',
+        'ircs:',
+        'git:',
+        'ssh:',
+        'news:',
+        'steam:',
+    );
+
+    #
+    # Lines
+    #
+
+    protected $BlockTypes = array(
+        '#' => array('Header'),
+        '*' => array('Rule', 'List'),
+        '+' => array('List'),
+        '-' => array('SetextHeader', 'Table', 'Rule', 'List'),
+        '0' => array('List'),
+        '1' => array('List'),
+        '2' => array('List'),
+        '3' => array('List'),
+        '4' => array('List'),
+        '5' => array('List'),
+        '6' => array('List'),
+        '7' => array('List'),
+        '8' => array('List'),
+        '9' => array('List'),
+        ':' => array('Table'),
+        '<' => array('Comment', 'Markup'),
+        '=' => array('SetextHeader'),
+        '>' => array('Quote'),
+        '[' => array('Reference'),
+        '_' => array('Rule'),
+        '`' => array('FencedCode'),
+        '|' => array('Table'),
+        '~' => array('FencedCode'),
+    );
+
+    # ~
+
+    protected $unmarkedBlockTypes = array(
+        'Code',
+    );
+
+    #
+    # Blocks
+    #
+
+    protected function lines(array $lines)
+    {
+        return $this->elements($this->linesElements($lines));
+    }
+
+    protected function linesElements(array $lines)
+    {
+        $Elements = array();
+        $CurrentBlock = null;
+
+        foreach ($lines as $line)
+        {
+            if (chop($line) === '')
+            {
+                if (isset($CurrentBlock))
+                {
+                    $CurrentBlock['interrupted'] = (isset($CurrentBlock['interrupted'])
+                        ? $CurrentBlock['interrupted'] + 1 : 1
+                    );
+                }
+
+                continue;
+            }
+
+            while (($beforeTab = strstr($line, "\t", true)) !== false)
+            {
+                $shortage = 4 - mb_strlen($beforeTab, 'utf-8') % 4;
+
+                $line = $beforeTab
+                    . str_repeat(' ', $shortage)
+                    . substr($line, strlen($beforeTab) + 1)
+                ;
+            }
+
+            $indent = strspn($line, ' ');
+
+            $text = $indent > 0 ? substr($line, $indent) : $line;
+
+            # ~
+
+            $Line = array('body' => $line, 'indent' => $indent, 'text' => $text);
+
+            # ~
+
+            if (isset($CurrentBlock['continuable']))
+            {
+                $methodName = 'block' . $CurrentBlock['type'] . 'Continue';
+                $Block = $this->$methodName($Line, $CurrentBlock);
+
+                if (isset($Block))
+                {
+                    $CurrentBlock = $Block;
+
+                    continue;
+                }
+                else
+                {
+                    if ($this->isBlockCompletable($CurrentBlock['type']))
+                    {
+                        $methodName = 'block' . $CurrentBlock['type'] . 'Complete';
+                        $CurrentBlock = $this->$methodName($CurrentBlock);
+                    }
+                }
+            }
+
+            # ~
+
+            $marker = $text[0];
+
+            # ~
+
+            $blockTypes = $this->unmarkedBlockTypes;
+
+            if (isset($this->BlockTypes[$marker]))
+            {
+                foreach ($this->BlockTypes[$marker] as $blockType)
+                {
+                    $blockTypes []= $blockType;
+                }
+            }
+
+            #
+            # ~
+
+            foreach ($blockTypes as $blockType)
+            {
+                $Block = $this->{"block$blockType"}($Line, $CurrentBlock);
+
+                if (isset($Block))
+                {
+                    $Block['type'] = $blockType;
+
+                    if ( ! isset($Block['identified']))
+                    {
+                        if (isset($CurrentBlock))
+                        {
+                            $Elements[] = $this->extractElement($CurrentBlock);
+                        }
+
+                        $Block['identified'] = true;
+                    }
+
+                    if ($this->isBlockContinuable($blockType))
+                    {
+                        $Block['continuable'] = true;
+                    }
+
+                    $CurrentBlock = $Block;
+
+                    continue 2;
+                }
+            }
+
+            # ~
+
+            if (isset($CurrentBlock) and $CurrentBlock['type'] === 'Paragraph')
+            {
+                $Block = $this->paragraphContinue($Line, $CurrentBlock);
+            }
+
+            if (isset($Block))
+            {
+                $CurrentBlock = $Block;
+            }
+            else
+            {
+                if (isset($CurrentBlock))
+                {
+                    $Elements[] = $this->extractElement($CurrentBlock);
+                }
+
+                $CurrentBlock = $this->paragraph($Line);
+
+                $CurrentBlock['identified'] = true;
+            }
+        }
+
+        # ~
+
+        if (isset($CurrentBlock['continuable']) and $this->isBlockCompletable($CurrentBlock['type']))
+        {
+            $methodName = 'block' . $CurrentBlock['type'] . 'Complete';
+            $CurrentBlock = $this->$methodName($CurrentBlock);
+        }
+
+        # ~
+
+        if (isset($CurrentBlock))
+        {
+            $Elements[] = $this->extractElement($CurrentBlock);
+        }
+
+        # ~
+
+        return $Elements;
+    }
+
+    protected function extractElement(array $Component)
+    {
+        if ( ! isset($Component['element']))
+        {
+            if (isset($Component['markup']))
+            {
+                $Component['element'] = array('rawHtml' => $Component['markup']);
+            }
+            elseif (isset($Component['hidden']))
+            {
+                $Component['element'] = array();
+            }
+        }
+
+        return $Component['element'];
+    }
+
+    protected function isBlockContinuable($Type)
+    {
+        return method_exists($this, 'block' . $Type . 'Continue');
+    }
+
+    protected function isBlockCompletable($Type)
+    {
+        return method_exists($this, 'block' . $Type . 'Complete');
+    }
+
+    #
+    # Code
+
+    protected function blockCode($Line, $Block = null)
+    {
+        if (isset($Block) and $Block['type'] === 'Paragraph' and ! isset($Block['interrupted']))
+        {
+            return;
+        }
+
+        if ($Line['indent'] >= 4)
+        {
+            $text = substr($Line['body'], 4);
+
+            $Block = array(
+                'element' => array(
+                    'name' => 'pre',
+                    'element' => array(
+                        'name' => 'code',
+                        'text' => $text,
+                    ),
+                ),
+            );
+
+            return $Block;
+        }
+    }
+
+    protected function blockCodeContinue($Line, $Block)
+    {
+        if ($Line['indent'] >= 4)
+        {
+            if (isset($Block['interrupted']))
+            {
+                $Block['element']['element']['text'] .= str_repeat("\n", $Block['interrupted']);
+
+                unset($Block['interrupted']);
+            }
+
+            $Block['element']['element']['text'] .= "\n";
+
+            $text = substr($Line['body'], 4);
+
+            $Block['element']['element']['text'] .= $text;
+
+            return $Block;
+        }
+    }
+
+    protected function blockCodeComplete($Block)
+    {
+        return $Block;
+    }
+
+    #
+    # Comment
+
+    protected function blockComment($Line)
+    {
+        if ($this->markupEscaped or $this->safeMode)
+        {
+            return;
+        }
+
+        if (strpos($Line['text'], '<!--') === 0)
+        {
+            $Block = array(
+                'element' => array(
+                    'rawHtml' => $Line['body'],
+                    'autobreak' => true,
+                ),
+            );
+
+            if (strpos($Line['text'], '-->') !== false)
+            {
+                $Block['closed'] = true;
+            }
+
+            return $Block;
+        }
+    }
+
+    protected function blockCommentContinue($Line, array $Block)
+    {
+        if (isset($Block['closed']))
+        {
+            return;
+        }
+
+        $Block['element']['rawHtml'] .= "\n" . $Line['body'];
+
+        if (strpos($Line['text'], '-->') !== false)
+        {
+            $Block['closed'] = true;
+        }
+
+        return $Block;
+    }
+
+    #
+    # Fenced Code
+
+    protected function blockFencedCode($Line)
+    {
+        $marker = $Line['text'][0];
+
+        $openerLength = strspn($Line['text'], $marker);
+
+        if ($openerLength < 3)
+        {
+            return;
+        }
+
+        $infostring = trim(substr($Line['text'], $openerLength), "\t ");
+
+        if (strpos($infostring, '`') !== false)
+        {
+            return;
+        }
+
+        $Element = array(
+            'name' => 'code',
+            'text' => '',
+        );
+
+        if ($infostring !== '')
+        {
+            /**
+             * https://www.w3.org/TR/2011/WD-html5-20110525/elements.html#classes
+             * Every HTML element may have a class attribute specified.
+             * The attribute, if specified, must have a value that is a set
+             * of space-separated tokens representing the various classes
+             * that the element belongs to.
+             * [...]
+             * The space characters, for the purposes of this specification,
+             * are U+0020 SPACE, U+0009 CHARACTER TABULATION (tab),
+             * U+000A LINE FEED (LF), U+000C FORM FEED (FF), and
+             * U+000D CARRIAGE RETURN (CR).
+             */
+            $language = substr($infostring, 0, strcspn($infostring, " \t\n\f\r"));
+
+            $Element['attributes'] = array('class' => "language-$language");
+        }
+
+        $Block = array(
+            'char' => $marker,
+            'openerLength' => $openerLength,
+            'element' => array(
+                'name' => 'pre',
+                'element' => $Element,
+            ),
+        );
+
+        return $Block;
+    }
+
+    protected function blockFencedCodeContinue($Line, $Block)
+    {
+        if (isset($Block['complete']))
+        {
+            return;
+        }
+
+        if (isset($Block['interrupted']))
+        {
+            $Block['element']['element']['text'] .= str_repeat("\n", $Block['interrupted']);
+
+            unset($Block['interrupted']);
+        }
+
+        if (($len = strspn($Line['text'], $Block['char'])) >= $Block['openerLength']
+            and chop(substr($Line['text'], $len), ' ') === ''
+        ) {
+            $Block['element']['element']['text'] = substr($Block['element']['element']['text'], 1);
+
+            $Block['complete'] = true;
+
+            return $Block;
+        }
+
+        $Block['element']['element']['text'] .= "\n" . $Line['body'];
+
+        return $Block;
+    }
+
+    protected function blockFencedCodeComplete($Block)
+    {
+        return $Block;
+    }
+
+    #
+    # Header
+
+    protected function blockHeader($Line)
+    {
+        $level = strspn($Line['text'], '#');
+
+        if ($level > 6)
+        {
+            return;
+        }
+
+        $text = trim($Line['text'], '#');
+
+        if ($this->strictMode and isset($text[0]) and $text[0] !== ' ')
+        {
+            return;
+        }
+
+        $text = trim($text, ' ');
+
+        $Block = array(
+            'element' => array(
+                'name' => 'h' . $level,
+                'handler' => array(
+                    'function' => 'lineElements',
+                    'argument' => $text,
+                    'destination' => 'elements',
+                )
+            ),
+        );
+
+        return $Block;
+    }
+
+    #
+    # List
+
+    protected function blockList($Line, ?array $CurrentBlock = null)
+    {
+        list($name, $pattern) = $Line['text'][0] <= '-' ? array('ul', '[*+-]') : array('ol', '[0-9]{1,9}+[.\)]');
+
+        if (preg_match('/^('.$pattern.'([ ]++|$))(.*+)/', $Line['text'], $matches))
+        {
+            $contentIndent = strlen($matches[2]);
+
+            if ($contentIndent >= 5)
+            {
+                $contentIndent -= 1;
+                $matches[1] = substr($matches[1], 0, -$contentIndent);
+                $matches[3] = str_repeat(' ', $contentIndent) . $matches[3];
+            }
+            elseif ($contentIndent === 0)
+            {
+                $matches[1] .= ' ';
+            }
+
+            $markerWithoutWhitespace = strstr($matches[1], ' ', true);
+
+            $Block = array(
+                'indent' => $Line['indent'],
+                'pattern' => $pattern,
+                'data' => array(
+                    'type' => $name,
+                    'marker' => $matches[1],
+                    'markerType' => ($name === 'ul' ? $markerWithoutWhitespace : substr($markerWithoutWhitespace, -1)),
+                ),
+                'element' => array(
+                    'name' => $name,
+                    'elements' => array(),
+                ),
+            );
+            $Block['data']['markerTypeRegex'] = preg_quote($Block['data']['markerType'], '/');
+
+            if ($name === 'ol')
+            {
+                $listStart = ltrim(strstr($matches[1], $Block['data']['markerType'], true), '0') ?: '0';
+
+                if ($listStart !== '1')
+                {
+                    if (
+                        isset($CurrentBlock)
+                        and $CurrentBlock['type'] === 'Paragraph'
+                        and ! isset($CurrentBlock['interrupted'])
+                    ) {
+                        return;
+                    }
+
+                    $Block['element']['attributes'] = array('start' => $listStart);
+                }
+            }
+
+            $Block['li'] = array(
+                'name' => 'li',
+                'handler' => array(
+                    'function' => 'li',
+                    'argument' => !empty($matches[3]) ? array($matches[3]) : array(),
+                    'destination' => 'elements'
+                )
+            );
+
+            $Block['element']['elements'] []= & $Block['li'];
+
+            return $Block;
+        }
+    }
+
+    protected function blockListContinue($Line, array $Block)
+    {
+        if (isset($Block['interrupted']) and empty($Block['li']['handler']['argument']))
+        {
+            return null;
+        }
+
+        $requiredIndent = ($Block['indent'] + strlen($Block['data']['marker']));
+
+        if ($Line['indent'] < $requiredIndent
+            and (
+                (
+                    $Block['data']['type'] === 'ol'
+                    and preg_match('/^[0-9]++'.$Block['data']['markerTypeRegex'].'(?:[ ]++(.*)|$)/', $Line['text'], $matches)
+                ) or (
+                    $Block['data']['type'] === 'ul'
+                    and preg_match('/^'.$Block['data']['markerTypeRegex'].'(?:[ ]++(.*)|$)/', $Line['text'], $matches)
+                )
+            )
+        ) {
+            if (isset($Block['interrupted']))
+            {
+                $Block['li']['handler']['argument'] []= '';
+
+                $Block['loose'] = true;
+
+                unset($Block['interrupted']);
+            }
+
+            unset($Block['li']);
+
+            $text = isset($matches[1]) ? $matches[1] : '';
+
+            $Block['indent'] = $Line['indent'];
+
+            $Block['li'] = array(
+                'name' => 'li',
+                'handler' => array(
+                    'function' => 'li',
+                    'argument' => array($text),
+                    'destination' => 'elements'
+                )
+            );
+
+            $Block['element']['elements'] []= & $Block['li'];
+
+            return $Block;
+        }
+        elseif ($Line['indent'] < $requiredIndent and $this->blockList($Line))
+        {
+            return null;
+        }
+
+        if ($Line['text'][0] === '[' and $this->blockReference($Line))
+        {
+            return $Block;
+        }
+
+        if ($Line['indent'] >= $requiredIndent)
+        {
+            if (isset($Block['interrupted']))
+            {
+                $Block['li']['handler']['argument'] []= '';
+
+                $Block['loose'] = true;
+
+                unset($Block['interrupted']);
+            }
+
+            $text = substr($Line['body'], $requiredIndent);
+
+            $Block['li']['handler']['argument'] []= $text;
+
+            return $Block;
+        }
+
+        if ( ! isset($Block['interrupted']))
+        {
+            $text = preg_replace('/^[ ]{0,'.$requiredIndent.'}+/', '', $Line['body']);
+
+            $Block['li']['handler']['argument'] []= $text;
+
+            return $Block;
+        }
+    }
+
+    protected function blockListComplete(array $Block)
+    {
+        if (isset($Block['loose']))
+        {
+            foreach ($Block['element']['elements'] as &$li)
+            {
+                if (end($li['handler']['argument']) !== '')
+                {
+                    $li['handler']['argument'] []= '';
+                }
+            }
+        }
+
+        return $Block;
+    }
+
+    #
+    # Quote
+
+    protected function blockQuote($Line)
+    {
+        if (preg_match('/^>[ ]?+(.*+)/', $Line['text'], $matches))
+        {
+            $Block = array(
+                'element' => array(
+                    'name' => 'blockquote',
+                    'handler' => array(
+                        'function' => 'linesElements',
+                        'argument' => (array) $matches[1],
+                        'destination' => 'elements',
+                    )
+                ),
+            );
+
+            return $Block;
+        }
+    }
+
+    protected function blockQuoteContinue($Line, array $Block)
+    {
+        if (isset($Block['interrupted']))
+        {
+            return;
+        }
+
+        if ($Line['text'][0] === '>' and preg_match('/^>[ ]?+(.*+)/', $Line['text'], $matches))
+        {
+            $Block['element']['handler']['argument'] []= $matches[1];
+
+            return $Block;
+        }
+
+        if ( ! isset($Block['interrupted']))
+        {
+            $Block['element']['handler']['argument'] []= $Line['text'];
+
+            return $Block;
+        }
+    }
+
+    #
+    # Rule
+
+    protected function blockRule($Line)
+    {
+        $marker = $Line['text'][0];
+
+        if (substr_count($Line['text'], $marker) >= 3 and chop($Line['text'], " $marker") === '')
+        {
+            $Block = array(
+                'element' => array(
+                    'name' => 'hr',
+                ),
+            );
+
+            return $Block;
+        }
+    }
+
+    #
+    # Setext
+
+    protected function blockSetextHeader($Line, ?array $Block = null)
+    {
+        if ( ! isset($Block) or $Block['type'] !== 'Paragraph' or isset($Block['interrupted']))
+        {
+            return;
+        }
+
+        if ($Line['indent'] < 4 and chop(chop($Line['text'], ' '), $Line['text'][0]) === '')
+        {
+            $Block['element']['name'] = $Line['text'][0] === '=' ? 'h1' : 'h2';
+
+            return $Block;
+        }
+    }
+
+    #
+    # Markup
+
+    protected function blockMarkup($Line)
+    {
+        if ($this->markupEscaped or $this->safeMode)
+        {
+            return;
+        }
+
+        if (preg_match('/^<[\/]?+(\w*)(?:[ ]*+'.$this->regexHtmlAttribute.')*+[ ]*+(\/)?>/', $Line['text'], $matches))
+        {
+            $element = strtolower($matches[1]);
+
+            if (in_array($element, $this->textLevelElements))
+            {
+                return;
+            }
+
+            $Block = array(
+                'name' => $matches[1],
+                'element' => array(
+                    'rawHtml' => $Line['text'],
+                    'autobreak' => true,
+                ),
+            );
+
+            return $Block;
+        }
+    }
+
+    protected function blockMarkupContinue($Line, array $Block)
+    {
+        if (isset($Block['closed']) or isset($Block['interrupted']))
+        {
+            return;
+        }
+
+        $Block['element']['rawHtml'] .= "\n" . $Line['body'];
+
+        return $Block;
+    }
+
+    #
+    # Reference
+
+    protected function blockReference($Line)
+    {
+        if (strpos($Line['text'], ']') !== false
+            and preg_match('/^\[(.+?)\]:[ ]*+<?(\S+?)>?(?:[ ]+["\'(](.+)["\')])?[ ]*+$/', $Line['text'], $matches)
+        ) {
+            $id = strtolower($matches[1]);
+
+            $Data = array(
+                'url' => $matches[2],
+                'title' => isset($matches[3]) ? $matches[3] : null,
+            );
+
+            $this->DefinitionData['Reference'][$id] = $Data;
+
+            $Block = array(
+                'element' => array(),
+            );
+
+            return $Block;
+        }
+    }
+
+    #
+    # Table
+
+    protected function blockTable($Line, ?array $Block = null)
+    {
+        if ( ! isset($Block) or $Block['type'] !== 'Paragraph' or isset($Block['interrupted']))
+        {
+            return;
+        }
+
+        if (
+            strpos($Block['element']['handler']['argument'], '|') === false
+            and strpos($Line['text'], '|') === false
+            and strpos($Line['text'], ':') === false
+            or strpos($Block['element']['handler']['argument'], "\n") !== false
+        ) {
+            return;
+        }
+
+        if (chop($Line['text'], ' -:|') !== '')
+        {
+            return;
+        }
+
+        $alignments = array();
+
+        $divider = $Line['text'];
+
+        $divider = trim($divider);
+        $divider = trim($divider, '|');
+
+        $dividerCells = explode('|', $divider);
+
+        foreach ($dividerCells as $dividerCell)
+        {
+            $dividerCell = trim($dividerCell);
+
+            if ($dividerCell === '')
+            {
+                return;
+            }
+
+            $alignment = null;
+
+            if ($dividerCell[0] === ':')
+            {
+                $alignment = 'left';
+            }
+
+            if (substr($dividerCell, - 1) === ':')
+            {
+                $alignment = $alignment === 'left' ? 'center' : 'right';
+            }
+
+            $alignments []= $alignment;
+        }
+
+        # ~
+
+        $HeaderElements = array();
+
+        $header = $Block['element']['handler']['argument'];
+
+        $header = trim($header);
+        $header = trim($header, '|');
+
+        $headerCells = explode('|', $header);
+
+        if (count($headerCells) !== count($alignments))
+        {
+            return;
+        }
+
+        foreach ($headerCells as $index => $headerCell)
+        {
+            $headerCell = trim($headerCell);
+
+            $HeaderElement = array(
+                'name' => 'th',
+                'handler' => array(
+                    'function' => 'lineElements',
+                    'argument' => $headerCell,
+                    'destination' => 'elements',
+                )
+            );
+
+            if (isset($alignments[$index]))
+            {
+                $alignment = $alignments[$index];
+
+                $HeaderElement['attributes'] = array(
+                    'style' => "text-align: $alignment;",
+                );
+            }
+
+            $HeaderElements []= $HeaderElement;
+        }
+
+        # ~
+
+        $Block = array(
+            'alignments' => $alignments,
+            'identified' => true,
+            'element' => array(
+                'name' => 'table',
+                'elements' => array(),
+            ),
+        );
+
+        $Block['element']['elements'] []= array(
+            'name' => 'thead',
+        );
+
+        $Block['element']['elements'] []= array(
+            'name' => 'tbody',
+            'elements' => array(),
+        );
+
+        $Block['element']['elements'][0]['elements'] []= array(
+            'name' => 'tr',
+            'elements' => $HeaderElements,
+        );
+
+        return $Block;
+    }
+
+    protected function blockTableContinue($Line, array $Block)
+    {
+        if (isset($Block['interrupted']))
+        {
+            return;
+        }
+
+        if (count($Block['alignments']) === 1 or $Line['text'][0] === '|' or strpos($Line['text'], '|'))
+        {
+            $Elements = array();
+
+            $row = $Line['text'];
+
+            $row = trim($row);
+            $row = trim($row, '|');
+
+            preg_match_all('/(?:(\\\\[|])|[^|`]|`[^`]++`|`)++/', $row, $matches);
+
+            $cells = array_slice($matches[0], 0, count($Block['alignments']));
+
+            foreach ($cells as $index => $cell)
+            {
+                $cell = trim($cell);
+
+                $Element = array(
+                    'name' => 'td',
+                    'handler' => array(
+                        'function' => 'lineElements',
+                        'argument' => $cell,
+                        'destination' => 'elements',
+                    )
+                );
+
+                if (isset($Block['alignments'][$index]))
+                {
+                    $Element['attributes'] = array(
+                        'style' => 'text-align: ' . $Block['alignments'][$index] . ';',
+                    );
+                }
+
+                $Elements []= $Element;
+            }
+
+            $Element = array(
+                'name' => 'tr',
+                'elements' => $Elements,
+            );
+
+            $Block['element']['elements'][1]['elements'] []= $Element;
+
+            return $Block;
+        }
+    }
+
+    #
+    # ~
+    #
+
+    protected function paragraph($Line)
+    {
+        return array(
+            'type' => 'Paragraph',
+            'element' => array(
+                'name' => 'p',
+                'handler' => array(
+                    'function' => 'lineElements',
+                    'argument' => $Line['text'],
+                    'destination' => 'elements',
+                ),
+            ),
+        );
+    }
+
+    protected function paragraphContinue($Line, array $Block)
+    {
+        if (isset($Block['interrupted']))
+        {
+            return;
+        }
+
+        $Block['element']['handler']['argument'] .= "\n".$Line['text'];
+
+        return $Block;
+    }
+
+    #
+    # Inline Elements
+    #
+
+    protected $InlineTypes = array(
+        '!' => array('Image'),
+        '&' => array('SpecialCharacter'),
+        '*' => array('Emphasis'),
+        ':' => array('Url'),
+        '<' => array('UrlTag', 'EmailTag', 'Markup'),
+        '[' => array('Link'),
+        '_' => array('Emphasis'),
+        '`' => array('Code'),
+        '~' => array('Strikethrough'),
+        '\\' => array('EscapeSequence'),
+    );
+
+    # ~
+
+    protected $inlineMarkerList = '!*_&[:<`~\\';
+
+    #
+    # ~
+    #
+
+    public function line($text, $nonNestables = array())
+    {
+        return $this->elements($this->lineElements($text, $nonNestables));
+    }
+
+    protected function lineElements($text, $nonNestables = array())
+    {
+        # standardize line breaks
+        $text = str_replace(array("\r\n", "\r"), "\n", $text);
+
+        $Elements = array();
+
+        $nonNestables = (empty($nonNestables)
+            ? array()
+            : array_combine($nonNestables, $nonNestables)
+        );
+
+        # $excerpt is based on the first occurrence of a marker
+
+        while ($excerpt = strpbrk($text, $this->inlineMarkerList))
+        {
+            $marker = $excerpt[0];
+
+            $markerPosition = strlen($text) - strlen($excerpt);
+
+            $Excerpt = array('text' => $excerpt, 'context' => $text);
+
+            foreach ($this->InlineTypes[$marker] as $inlineType)
+            {
+                # check to see if the current inline type is nestable in the current context
+
+                if (isset($nonNestables[$inlineType]))
+                {
+                    continue;
+                }
+
+                $Inline = $this->{"inline$inlineType"}($Excerpt);
+
+                if ( ! isset($Inline))
+                {
+                    continue;
+                }
+
+                # makes sure that the inline belongs to "our" marker
+
+                if (isset($Inline['position']) and $Inline['position'] > $markerPosition)
+                {
+                    continue;
+                }
+
+                # sets a default inline position
+
+                if ( ! isset($Inline['position']))
+                {
+                    $Inline['position'] = $markerPosition;
+                }
+
+                # cause the new element to 'inherit' our non nestables
+
+
+                $Inline['element']['nonNestables'] = isset($Inline['element']['nonNestables'])
+                    ? array_merge($Inline['element']['nonNestables'], $nonNestables)
+                    : $nonNestables
+                ;
+
+                # the text that comes before the inline
+                $unmarkedText = substr($text, 0, $Inline['position']);
+
+                # compile the unmarked text
+                $InlineText = $this->inlineText($unmarkedText);
+                $Elements[] = $InlineText['element'];
+
+                # compile the inline
+                $Elements[] = $this->extractElement($Inline);
+
+                # remove the examined text
+                $text = substr($text, $Inline['position'] + $Inline['extent']);
+
+                continue 2;
+            }
+
+            # the marker does not belong to an inline
+
+            $unmarkedText = substr($text, 0, $markerPosition + 1);
+
+            $InlineText = $this->inlineText($unmarkedText);
+            $Elements[] = $InlineText['element'];
+
+            $text = substr($text, $markerPosition + 1);
+        }
+
+        $InlineText = $this->inlineText($text);
+        $Elements[] = $InlineText['element'];
+
+        foreach ($Elements as &$Element)
+        {
+            if ( ! isset($Element['autobreak']))
+            {
+                $Element['autobreak'] = false;
+            }
+        }
+
+        return $Elements;
+    }
+
+    #
+    # ~
+    #
+
+    protected function inlineText($text)
+    {
+        $Inline = array(
+            'extent' => strlen($text),
+            'element' => array(),
+        );
+
+        $Inline['element']['elements'] = self::pregReplaceElements(
+            $this->breaksEnabled ? '/[ ]*+\n/' : '/(?:[ ]*+\\\\|[ ]{2,}+)\n/',
+            array(
+                array('name' => 'br'),
+                array('text' => "\n"),
+            ),
+            $text
+        );
+
+        return $Inline;
+    }
+
+    protected function inlineCode($Excerpt)
+    {
+        $marker = $Excerpt['text'][0];
+
+        if (preg_match('/^(['.$marker.']++)[ ]*+(.+?)[ ]*+(?<!['.$marker.'])\1(?!'.$marker.')/s', $Excerpt['text'], $matches))
+        {
+            $text = $matches[2];
+            $text = preg_replace('/[ ]*+\n/', ' ', $text);
+
+            return array(
+                'extent' => strlen($matches[0]),
+                'element' => array(
+                    'name' => 'code',
+                    'text' => $text,
+                ),
+            );
+        }
+    }
+
+    protected function inlineEmailTag($Excerpt)
+    {
+        $hostnameLabel = '[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?';
+
+        $commonMarkEmail = '[a-zA-Z0-9.!#$%&\'*+\/=?^_`{|}~-]++@'
+            . $hostnameLabel . '(?:\.' . $hostnameLabel . ')*';
+
+        if (strpos($Excerpt['text'], '>') !== false
+            and preg_match("/^<((mailto:)?$commonMarkEmail)>/i", $Excerpt['text'], $matches)
+        ){
+            $url = $matches[1];
+
+            if ( ! isset($matches[2]))
+            {
+                $url = "mailto:$url";
+            }
+
+            return array(
+                'extent' => strlen($matches[0]),
+                'element' => array(
+                    'name' => 'a',
+                    'text' => $matches[1],
+                    'attributes' => array(
+                        'href' => $url,
+                    ),
+                ),
+            );
+        }
+    }
+
+    protected function inlineEmphasis($Excerpt)
+    {
+        if ( ! isset($Excerpt['text'][1]))
+        {
+            return;
+        }
+
+        $marker = $Excerpt['text'][0];
+
+        if ($Excerpt['text'][1] === $marker and preg_match($this->StrongRegex[$marker], $Excerpt['text'], $matches))
+        {
+            $emphasis = 'strong';
+        }
+        elseif (preg_match($this->EmRegex[$marker], $Excerpt['text'], $matches))
+        {
+            $emphasis = 'em';
+        }
+        else
+        {
+            return;
+        }
+
+        return array(
+            'extent' => strlen($matches[0]),
+            'element' => array(
+                'name' => $emphasis,
+                'handler' => array(
+                    'function' => 'lineElements',
+                    'argument' => $matches[1],
+                    'destination' => 'elements',
+                )
+            ),
+        );
+    }
+
+    protected function inlineEscapeSequence($Excerpt)
+    {
+        if (isset($Excerpt['text'][1]) and in_array($Excerpt['text'][1], $this->specialCharacters))
+        {
+            return array(
+                'element' => array('rawHtml' => $Excerpt['text'][1]),
+                'extent' => 2,
+            );
+        }
+    }
+
+    protected function inlineImage($Excerpt)
+    {
+        if ( ! isset($Excerpt['text'][1]) or $Excerpt['text'][1] !== '[')
+        {
+            return;
+        }
+
+        $Excerpt['text']= substr($Excerpt['text'], 1);
+
+        $Link = $this->inlineLink($Excerpt);
+
+        if ($Link === null)
+        {
+            return;
+        }
+
+        $Inline = array(
+            'extent' => $Link['extent'] + 1,
+            'element' => array(
+                'name' => 'img',
+                'attributes' => array(
+                    'src' => $Link['element']['attributes']['href'],
+                    'alt' => $Link['element']['handler']['argument'],
+                ),
+                'autobreak' => true,
+            ),
+        );
+
+        $Inline['element']['attributes'] += $Link['element']['attributes'];
+
+        unset($Inline['element']['attributes']['href']);
+
+        return $Inline;
+    }
+
+    protected function inlineLink($Excerpt)
+    {
+        $Element = array(
+            'name' => 'a',
+            'handler' => array(
+                'function' => 'lineElements',
+                'argument' => null,
+                'destination' => 'elements',
+            ),
+            'nonNestables' => array('Url', 'Link'),
+            'attributes' => array(
+                'href' => null,
+                'title' => null,
+            ),
+        );
+
+        $extent = 0;
+
+        $remainder = $Excerpt['text'];
+
+        if (preg_match('/\[((?:[^][]++|(?R))*+)\]/', $remainder, $matches))
+        {
+            $Element['handler']['argument'] = $matches[1];
+
+            $extent += strlen($matches[0]);
+
+            $remainder = substr($remainder, $extent);
+        }
+        else
+        {
+            return;
+        }
+
+        if (preg_match('/^[(]\s*+((?:[^ ()]++|[(][^ )]+[)])++)(?:[ ]+("[^"]*+"|\'[^\']*+\'))?\s*+[)]/', $remainder, $matches))
+        {
+            $Element['attributes']['href'] = $matches[1];
+
+            if (isset($matches[2]))
+            {
+                $Element['attributes']['title'] = substr($matches[2], 1, - 1);
+            }
+
+            $extent += strlen($matches[0]);
+        }
+        else
+        {
+            if (preg_match('/^\s*\[(.*?)\]/', $remainder, $matches))
+            {
+                $definition = strlen($matches[1]) ? $matches[1] : $Element['handler']['argument'];
+                $definition = strtolower($definition);
+
+                $extent += strlen($matches[0]);
+            }
+            else
+            {
+                $definition = strtolower($Element['handler']['argument']);
+            }
+
+            if ( ! isset($this->DefinitionData['Reference'][$definition]))
+            {
+                return;
+            }
+
+            $Definition = $this->DefinitionData['Reference'][$definition];
+
+            $Element['attributes']['href'] = $Definition['url'];
+            $Element['attributes']['title'] = $Definition['title'];
+        }
+
+        return array(
+            'extent' => $extent,
+            'element' => $Element,
+        );
+    }
+
+    protected function inlineMarkup($Excerpt)
+    {
+        if ($this->markupEscaped or $this->safeMode or strpos($Excerpt['text'], '>') === false)
+        {
+            return;
+        }
+
+        if ($Excerpt['text'][1] === '/' and preg_match('/^<\/\w[\w-]*+[ ]*+>/s', $Excerpt['text'], $matches))
+        {
+            return array(
+                'element' => array('rawHtml' => $matches[0]),
+                'extent' => strlen($matches[0]),
+            );
+        }
+
+        if ($Excerpt['text'][1] === '!' and preg_match('/^<!---?[^>-](?:-?+[^-])*-->/s', $Excerpt['text'], $matches))
+        {
+            return array(
+                'element' => array('rawHtml' => $matches[0]),
+                'extent' => strlen($matches[0]),
+            );
+        }
+
+        if ($Excerpt['text'][1] !== ' ' and preg_match('/^<\w[\w-]*+(?:[ ]*+'.$this->regexHtmlAttribute.')*+[ ]*+\/?>/s', $Excerpt['text'], $matches))
+        {
+            return array(
+                'element' => array('rawHtml' => $matches[0]),
+                'extent' => strlen($matches[0]),
+            );
+        }
+    }
+
+    protected function inlineSpecialCharacter($Excerpt)
+    {
+        if (substr($Excerpt['text'], 1, 1) !== ' ' and strpos($Excerpt['text'], ';') !== false
+            and preg_match('/^&(#?+[0-9a-zA-Z]++);/', $Excerpt['text'], $matches)
+        ) {
+            return array(
+                'element' => array('rawHtml' => '&' . $matches[1] . ';'),
+                'extent' => strlen($matches[0]),
+            );
+        }
+    }
+
+    protected function inlineStrikethrough($Excerpt)
+    {
+        if ( ! isset($Excerpt['text'][1]))
+        {
+            return;
+        }
+
+        if ($Excerpt['text'][1] === '~' and preg_match('/^~~(?=\S)(.+?)(?<=\S)~~/', $Excerpt['text'], $matches))
+        {
+            return array(
+                'extent' => strlen($matches[0]),
+                'element' => array(
+                    'name' => 'del',
+                    'handler' => array(
+                        'function' => 'lineElements',
+                        'argument' => $matches[1],
+                        'destination' => 'elements',
+                    )
+                ),
+            );
+        }
+    }
+
+    protected function inlineUrl($Excerpt)
+    {
+        if ($this->urlsLinked !== true or ! isset($Excerpt['text'][2]) or $Excerpt['text'][2] !== '/')
+        {
+            return;
+        }
+
+        if (strpos($Excerpt['context'], 'http') !== false
+            and preg_match('/\bhttps?+:[\/]{2}[^\s<]+\b\/*+/ui', $Excerpt['context'], $matches, PREG_OFFSET_CAPTURE)
+        ) {
+            $url = $matches[0][0];
+
+            $Inline = array(
+                'extent' => strlen($matches[0][0]),
+                'position' => $matches[0][1],
+                'element' => array(
+                    'name' => 'a',
+                    'text' => $url,
+                    'attributes' => array(
+                        'href' => $url,
+                    ),
+                ),
+            );
+
+            return $Inline;
+        }
+    }
+
+    protected function inlineUrlTag($Excerpt)
+    {
+        if (strpos($Excerpt['text'], '>') !== false and preg_match('/^<(\w++:\/{2}[^ >]++)>/i', $Excerpt['text'], $matches))
+        {
+            $url = $matches[1];
+
+            return array(
+                'extent' => strlen($matches[0]),
+                'element' => array(
+                    'name' => 'a',
+                    'text' => $url,
+                    'attributes' => array(
+                        'href' => $url,
+                    ),
+                ),
+            );
+        }
+    }
+
+    # ~
+
+    protected function unmarkedText($text)
+    {
+        $Inline = $this->inlineText($text);
+        return $this->element($Inline['element']);
+    }
+
+    #
+    # Handlers
+    #
+
+    protected function handle(array $Element)
+    {
+        if (isset($Element['handler']))
+        {
+            if (!isset($Element['nonNestables']))
+            {
+                $Element['nonNestables'] = array();
+            }
+
+            if (is_string($Element['handler']))
+            {
+                $function = $Element['handler'];
+                $argument = $Element['text'];
+                unset($Element['text']);
+                $destination = 'rawHtml';
+            }
+            else
+            {
+                $function = $Element['handler']['function'];
+                $argument = $Element['handler']['argument'];
+                $destination = $Element['handler']['destination'];
+            }
+
+            $Element[$destination] = $this->{$function}($argument, $Element['nonNestables']);
+
+            if ($destination === 'handler')
+            {
+                $Element = $this->handle($Element);
+            }
+
+            unset($Element['handler']);
+        }
+
+        return $Element;
+    }
+
+    protected function handleElementRecursive(array $Element)
+    {
+        return $this->elementApplyRecursive(array($this, 'handle'), $Element);
+    }
+
+    protected function handleElementsRecursive(array $Elements)
+    {
+        return $this->elementsApplyRecursive(array($this, 'handle'), $Elements);
+    }
+
+    protected function elementApplyRecursive($closure, array $Element)
+    {
+        $Element = call_user_func($closure, $Element);
+
+        if (isset($Element['elements']))
+        {
+            $Element['elements'] = $this->elementsApplyRecursive($closure, $Element['elements']);
+        }
+        elseif (isset($Element['element']))
+        {
+            $Element['element'] = $this->elementApplyRecursive($closure, $Element['element']);
+        }
+
+        return $Element;
+    }
+
+    protected function elementApplyRecursiveDepthFirst($closure, array $Element)
+    {
+        if (isset($Element['elements']))
+        {
+            $Element['elements'] = $this->elementsApplyRecursiveDepthFirst($closure, $Element['elements']);
+        }
+        elseif (isset($Element['element']))
+        {
+            $Element['element'] = $this->elementsApplyRecursiveDepthFirst($closure, $Element['element']);
+        }
+
+        $Element = call_user_func($closure, $Element);
+
+        return $Element;
+    }
+
+    protected function elementsApplyRecursive($closure, array $Elements)
+    {
+        foreach ($Elements as &$Element)
+        {
+            $Element = $this->elementApplyRecursive($closure, $Element);
+        }
+
+        return $Elements;
+    }
+
+    protected function elementsApplyRecursiveDepthFirst($closure, array $Elements)
+    {
+        foreach ($Elements as &$Element)
+        {
+            $Element = $this->elementApplyRecursiveDepthFirst($closure, $Element);
+        }
+
+        return $Elements;
+    }
+
+    protected function element(array $Element)
+    {
+        if ($this->safeMode)
+        {
+            $Element = $this->sanitiseElement($Element);
+        }
+
+        # identity map if element has no handler
+        $Element = $this->handle($Element);
+
+        $hasName = isset($Element['name']);
+
+        $markup = '';
+
+        if ($hasName)
+        {
+            $markup .= '<' . $Element['name'];
+
+            if (isset($Element['attributes']))
+            {
+                foreach ($Element['attributes'] as $name => $value)
+                {
+                    if ($value === null)
+                    {
+                        continue;
+                    }
+
+                    $markup .= " $name=\"".self::escape($value).'"';
+                }
+            }
+        }
+
+        $permitRawHtml = false;
+
+        if (isset($Element['text']))
+        {
+            $text = $Element['text'];
+        }
+        // very strongly consider an alternative if you're writing an
+        // extension
+        elseif (isset($Element['rawHtml']))
+        {
+            $text = $Element['rawHtml'];
+
+            $allowRawHtmlInSafeMode = isset($Element['allowRawHtmlInSafeMode']) && $Element['allowRawHtmlInSafeMode'];
+            $permitRawHtml = !$this->safeMode || $allowRawHtmlInSafeMode;
+        }
+
+        $hasContent = isset($text) || isset($Element['element']) || isset($Element['elements']);
+
+        if ($hasContent)
+        {
+            $markup .= $hasName ? '>' : '';
+
+            if (isset($Element['elements']))
+            {
+                $markup .= $this->elements($Element['elements']);
+            }
+            elseif (isset($Element['element']))
+            {
+                $markup .= $this->element($Element['element']);
+            }
+            else
+            {
+                if (!$permitRawHtml)
+                {
+                    $markup .= self::escape($text, true);
+                }
+                else
+                {
+                    $markup .= $text;
+                }
+            }
+
+            $markup .= $hasName ? '</' . $Element['name'] . '>' : '';
+        }
+        elseif ($hasName)
+        {
+            $markup .= ' />';
+        }
+
+        return $markup;
+    }
+
+    protected function elements(array $Elements)
+    {
+        $markup = '';
+
+        $autoBreak = true;
+
+        foreach ($Elements as $Element)
+        {
+            if (empty($Element))
+            {
+                continue;
+            }
+
+            $autoBreakNext = (isset($Element['autobreak'])
+                ? $Element['autobreak'] : isset($Element['name'])
+            );
+            // (autobreak === false) covers both sides of an element
+            $autoBreak = !$autoBreak ? $autoBreak : $autoBreakNext;
+
+            $markup .= ($autoBreak ? "\n" : '') . $this->element($Element);
+            $autoBreak = $autoBreakNext;
+        }
+
+        $markup .= $autoBreak ? "\n" : '';
+
+        return $markup;
+    }
+
+    # ~
+
+    protected function li($lines)
+    {
+        $Elements = $this->linesElements($lines);
+
+        if ( ! in_array('', $lines)
+            and isset($Elements[0]) and isset($Elements[0]['name'])
+            and $Elements[0]['name'] === 'p'
+        ) {
+            unset($Elements[0]['name']);
+        }
+
+        return $Elements;
+    }
+
+    #
+    # AST Convenience
+    #
+
+    /**
+     * Replace occurrences $regexp with $Elements in $text. Return an array of
+     * elements representing the replacement.
+     */
+    protected static function pregReplaceElements($regexp, $Elements, $text)
+    {
+        $newElements = array();
+
+        while (preg_match($regexp, $text, $matches, PREG_OFFSET_CAPTURE))
+        {
+            $offset = $matches[0][1];
+            $before = substr($text, 0, $offset);
+            $after = substr($text, $offset + strlen($matches[0][0]));
+
+            $newElements[] = array('text' => $before);
+
+            foreach ($Elements as $Element)
+            {
+                $newElements[] = $Element;
+            }
+
+            $text = $after;
+        }
+
+        $newElements[] = array('text' => $text);
+
+        return $newElements;
+    }
+
+    #
+    # Deprecated Methods
+    #
+
+    /**
+     * @deprecated use text() instead
+     */
+    function parse($text)
+    {
+        $markup = $this->text($text);
+
+        return $markup;
+    }
+
+    protected function sanitiseElement(array $Element)
+    {
+        static $goodAttribute = '/^[a-zA-Z0-9][a-zA-Z0-9-_]*+$/';
+        static $safeUrlNameToAtt  = array(
+            'a'   => 'href',
+            'img' => 'src',
+        );
+
+        if ( ! isset($Element['name']))
+        {
+            unset($Element['attributes']);
+            return $Element;
+        }
+
+        if (isset($safeUrlNameToAtt[$Element['name']]))
+        {
+            $Element = $this->filterUnsafeUrlInAttribute($Element, $safeUrlNameToAtt[$Element['name']]);
+        }
+
+        if ( ! empty($Element['attributes']))
+        {
+            foreach ($Element['attributes'] as $att => $val)
+            {
+                # filter out badly parsed attribute
+                if ( ! preg_match($goodAttribute, $att))
+                {
+                    unset($Element['attributes'][$att]);
+                }
+                # dump onevent attribute
+                elseif (self::striAtStart($att, 'on'))
+                {
+                    unset($Element['attributes'][$att]);
+                }
+            }
+        }
+
+        return $Element;
+    }
+
+    protected function filterUnsafeUrlInAttribute(array $Element, $attribute)
+    {
+        foreach ($this->safeLinksWhitelist as $scheme)
+        {
+            if (self::striAtStart($Element['attributes'][$attribute], $scheme))
+            {
+                return $Element;
+            }
+        }
+
+        $Element['attributes'][$attribute] = str_replace(':', '%3A', $Element['attributes'][$attribute]);
+
+        return $Element;
+    }
+
+    #
+    # Static Methods
+    #
+
+    protected static function escape($text, $allowQuotes = false)
+    {
+        return htmlspecialchars($text, $allowQuotes ? ENT_NOQUOTES : ENT_QUOTES, 'UTF-8');
+    }
+
+    protected static function striAtStart($string, $needle)
+    {
+        $len = strlen($needle);
+
+        if ($len > strlen($string))
+        {
+            return false;
+        }
+        else
+        {
+            return strtolower(substr($string, 0, $len)) === strtolower($needle);
+        }
+    }
+
+    static function instance($name = 'default')
+    {
+        if (isset(self::$instances[$name]))
+        {
+            return self::$instances[$name];
+        }
+
+        $instance = new static();
+
+        self::$instances[$name] = $instance;
+
+        return $instance;
+    }
+
+    private static $instances = array();
+
+    #
+    # Fields
+    #
+
+    protected $DefinitionData;
+
+    #
+    # Read-Only
+
+    protected $specialCharacters = array(
+        '\\', '`', '*', '_', '{', '}', '[', ']', '(', ')', '>', '#', '+', '-', '.', '!', '|', '~'
+    );
+
+    protected $StrongRegex = array(
+        '*' => '/^[*]{2}((?:\\\\\*|[^*]|[*][^*]*+[*])+?)[*]{2}(?![*])/s',
+        '_' => '/^__((?:\\\\_|[^_]|_[^_]*+_)+?)__(?!_)/us',
+    );
+
+    protected $EmRegex = array(
+        '*' => '/^[*]((?:\\\\\*|[^*]|[*][*][^*]+?[*][*])+?)[*](?![*])/s',
+        '_' => '/^_((?:\\\\_|[^_]|__[^_]*__)+?)_(?!_)\b/us',
+    );
+
+    protected $regexHtmlAttribute = '[a-zA-Z_:][\w:.-]*+(?:\s*+=\s*+(?:[^"\'=<>`\s]+|"[^"]*+"|\'[^\']*+\'))?+';
+
+    protected $voidElements = array(
+        'area', 'base', 'br', 'col', 'command', 'embed', 'hr', 'img', 'input', 'link', 'meta', 'param', 'source',
+    );
+
+    protected $textLevelElements = array(
+        'a', 'br', 'bdo', 'abbr', 'blink', 'nextid', 'acronym', 'basefont',
+        'b', 'em', 'big', 'cite', 'small', 'spacer', 'listing',
+        'i', 'rp', 'del', 'code',          'strike', 'marquee',
+        'q', 'rt', 'ins', 'font',          'strong',
+        's', 'tt', 'kbd', 'mark',
+        'u', 'xm', 'sub', 'nobr',
+                   'sup', 'ruby',
+                   'var', 'span',
+                   'wbr', 'time',
+    );
+}
diff --git a/vendor/erusev/parsedown/README.md b/vendor/erusev/parsedown/README.md
new file mode 100644
index 0000000..b64950c
--- /dev/null
+++ b/vendor/erusev/parsedown/README.md
@@ -0,0 +1,98 @@
+# Parsedown
+
+[![Total Downloads](https://poser.pugx.org/erusev/parsedown/d/total.svg)](https://packagist.org/packages/erusev/parsedown)
+[![Version](https://poser.pugx.org/erusev/parsedown/v/stable.svg)](https://packagist.org/packages/erusev/parsedown)
+[![License](https://poser.pugx.org/erusev/parsedown/license.svg)](https://packagist.org/packages/erusev/parsedown)
+
+Better Markdown Parser in PHP — <a href="https://parsedown.org/demo">demo</a>
+
+## Features
+
+- One file
+- No dependencies
+- [Super fast](http://parsedown.org/speed)
+- Extensible
+- [GitHub flavored](https://github.github.com/gfm)
+- [Tested](http://parsedown.org/tests/) in PHP 7.1+
+- [Markdown Extra extension](https://github.com/erusev/parsedown-extra)
+
+## Installation
+
+Install the [composer package]:
+
+```sh
+composer require erusev/parsedown
+```
+
+Or download the [latest release] and include `Parsedown.php`
+
+[composer package]: https://packagist.org/packages/erusev/parsedown "The Parsedown package on packagist.org"
+[latest release]: https://github.com/erusev/parsedown/releases/latest "The latest release of Parsedown"
+
+## Example
+
+```php
+$Parsedown = new Parsedown();
+
+echo $Parsedown->text('Hello _Parsedown_!'); # prints: <p>Hello <em>Parsedown</em>!</p>
+```
+
+You can also parse inline markdown only:
+
+```php
+echo $Parsedown->line('Hello _Parsedown_!'); # prints: Hello <em>Parsedown</em>!
+```
+
+More examples in [the wiki](https://github.com/erusev/parsedown/wiki/) and in [this video tutorial](http://youtu.be/wYZBY8DEikI).
+
+## Security
+
+Parsedown is capable of escaping user-input within the HTML that it generates. Additionally Parsedown will apply sanitisation to additional scripting vectors (such as scripting link destinations) that are introduced by the markdown syntax itself.
+
+To tell Parsedown that it is processing untrusted user-input, use the following:
+
+```php
+$Parsedown->setSafeMode(true);
+```
+
+If instead, you wish to allow HTML within untrusted user-input, but still want output to be free from XSS it is recommended that you make use of a HTML sanitiser that allows HTML tags to be whitelisted, like [HTML Purifier](http://htmlpurifier.org/).
+
+In both cases you should strongly consider employing defence-in-depth measures, like [deploying a Content-Security-Policy](https://scotthelme.co.uk/content-security-policy-an-introduction/) (a browser security feature) so that your page is likely to be safe even if an attacker finds a vulnerability in one of the first lines of defence above.
+
+Safe mode does not necessarily yield safe results when using extensions to Parsedown. Extensions should be evaluated on their own to determine their specific safety against XSS.
+
+## Escaping HTML
+
+> WARNING: This method is not safe from XSS!
+
+If you wish to escape HTML in trusted input, you can use the following:
+
+```php
+$Parsedown->setMarkupEscaped(true);
+```
+
+Beware that this still allows users to insert unsafe scripting vectors, ex: `[xss](javascript:alert%281%29)`.
+
+## Questions
+
+**How does Parsedown work?**
+
+It tries to read Markdown like a human. First, it looks at the lines. It’s interested in how the lines start. This helps it recognise blocks. It knows, for example, that if a line starts with a `-` then perhaps it belongs to a list. Once it recognises the blocks, it continues to the content. As it reads, it watches out for special characters. This helps it recognise inline elements (or inlines).
+
+We call this approach "line based". We believe that Parsedown is the first Markdown parser to use it. Since the release of Parsedown, other developers have used the same approach to develop other Markdown parsers in PHP and in other languages.
+
+**Is it compliant with CommonMark?**
+
+It passes most of the CommonMark tests. Most of the tests that don't pass deal with cases that are quite uncommon. Still, as CommonMark matures, compliance should improve.
+
+**Who uses it?**
+
+[Laravel Framework](https://laravel.com/), [Bolt CMS](http://bolt.cm/), [Grav CMS](http://getgrav.org/), [Herbie CMS](http://www.getherbie.org/), [Kirby CMS](http://getkirby.com/), [October CMS](http://octobercms.com/), [Pico CMS](http://picocms.org), [Statamic CMS](http://www.statamic.com/), [phpDocumentor](http://www.phpdoc.org/), [RaspberryPi.org](http://www.raspberrypi.org/), [Symfony Demo](https://github.com/symfony/demo) and [more](https://packagist.org/packages/erusev/parsedown/dependents).
+
+**How can I help?**
+
+Use it, star it, share it and if you feel generous, [donate](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=528P3NZQMP8N2).
+
+**What else should I know?**
+
+I also make [Nota](https://nota.md/) — a notes app designed for local Markdown files.
diff --git a/vendor/erusev/parsedown/composer.json b/vendor/erusev/parsedown/composer.json
new file mode 100644
index 0000000..b145680
--- /dev/null
+++ b/vendor/erusev/parsedown/composer.json
@@ -0,0 +1,33 @@
+{
+    "name": "erusev/parsedown",
+    "description": "Parser for Markdown.",
+    "keywords": ["markdown", "parser"],
+    "homepage": "http://parsedown.org",
+    "type": "library",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Emanuil Rusev",
+            "email": "hello@erusev.com",
+            "homepage": "http://erusev.com"
+        }
+    ],
+    "require": {
+        "php": ">=7.1",
+        "ext-mbstring": "*"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^7.5|^8.5|^9.6"
+    },
+    "autoload": {
+        "psr-0": {"Parsedown": ""}
+    },
+    "autoload-dev": {
+        "psr-0": {
+            "TestParsedown": "test/",
+            "ParsedownTest": "test/",
+            "CommonMarkTest": "test/",
+            "CommonMarkTestWeak": "test/"
+        }
+    }
+}