Add markdown (commonmark) support

Julien LepillerMon Mar 08 00:36:25+0300 2021

d665efa

gitile/assets
namelast commitdate
css/Update css for tag boxesSun Mar 07 16:55:30+0300 2021
images/Add iconThu Feb 25 16:59:17+0300 2021
js/Add js to copy git commit hashSun Mar 07 17:40:40+0300 2021