--- /dev/null
+---
+layout: lesson
+root: . # Is the only page that doesn't follow the pattern /:path/index.html
+permalink: index.html # Is the only page that doesn't follow the pattern /:path/index.html
+---
+FIXME: home page introduction
+
+<!-- this is an html comment -->
+
+{% comment %} This is a comment in Liquid {% endcomment %}
+
+> ## Prerequisites
+>
+> FIXME
+{: .prereq}
+
+{% include links.md %}