Some Markdown fixes
Some Markdown fixes

* Update JRuby homepage url

Signed-off-by: Alex Coles <60c6d277a8bd81de7fdde19201bf9c58a3df08f4@alexcolesportfolio.com>

langalex/culerity,m3talsmith/culerity,langalex/culerity,m3talsmith/culerity