diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..6704f18
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,6 @@
+[submodule "parsedown"]
+	path = parsedown
+	url = https://github.com/erusev/parsedown.git
+[submodule "parsedown-extra"]
+	path = parsedown-extra
+	url = https://github.com/erusev/parsedown-extra.git
diff --git a/parsedown b/parsedown
new file mode 160000
index 0000000..4e433a8
--- /dev/null
+++ b/parsedown
@@ -0,0 +1 @@
+Subproject commit 4e433a8d57078645b55d21fd12c887d3ba6ca01e
diff --git a/parsedown-extra b/parsedown-extra
new file mode 160000
index 0000000..cf4dc29
--- /dev/null
+++ b/parsedown-extra
@@ -0,0 +1 @@
+Subproject commit cf4dc29794d22ab441fddd2b336b5c54f7ae2e2f