diff --git a/in/public/documents/index.rst b/in/public/documents/index.rst
index e8b4583..da3be0a 100644
--- a/in/public/documents/index.rst
+++ b/in/public/documents/index.rst
@@ -7,6 +7,7 @@ Documents
    pandoc/index
    sphinx/index
    markdown/index
+   recommonmark/index
    restructuredtext/index
    libreoffice/index
    pdftk/index
diff --git a/in/public/documents/recommonmark/index.rst b/in/public/documents/recommonmark/index.rst
new file mode 100644
index 0000000..d37c560
--- /dev/null
+++ b/in/public/documents/recommonmark/index.rst
@@ -0,0 +1,4 @@
+recommonmark
+============
+
+.. todo:: extensions