Revert "Add .md, remove .html"
Revert "Add .md, remove .html"

This reverts commit 130ff4c83828e4c12c14803fde66e7e0348be198.

Reason for revert is because .html files are generated by documentation
and are used by the website.

NorthDecoder/jstat,jstat/jstat,jstat/jstat,NorthDecoder/jstat