[1] The vfmd specification (6/16/2014, 1:16:57 PM 版) <http://www.vfmd.org/vfmd-spec/specification/>
vfmd is a variant of Markdown with an unambiguous specification of its syntax.
[2] Differences with the original Markdown (3/1/2015, 12:56:09 PM 版) <http://www.vfmd.org/differences/>
[3] vfmd · GitHub (3/23/2015, 3:27:57 AM 版) <https://github.com/vfmd>
Google search: vfmd