Bug#882704: preliminary package on github

[Jeffrey Cliff]

I now have a preliminary, building package available.  It has my name on it
as maintainer and since I don't really know how to do that, it'll have to
be changed.  Hopefully this helps
https://github.com/msabramo/setuptools-markdown/pull/17
which comes from https://github.com/themusicogd1/setuptools-markdown/