Use Markdown for Requirements index.

Author: BigBlueHat

requirements/index.html

@@ -0,0 +1,12 @@
+---
+layout: fomantic
+ga: 40462488
+---
+
+# Requirements
+
+The following requirements are sorted in most recent to least recent order:
+* [Latest](latest/)
+{% for draft in specs['requirements'] -%}
+* [{{ draft[0] }}]({{ draft[1] }})
+{% endfor %}