link GNU Coding Standards and Information for Maintainers of GNU Software
Add links to compatible and relevant rules in GNU.
Thanks to FĂ©licien Pillot for bringing this idea and finding some matching rules:
https://lists.globalcode.info/mailman3/hyperkitty/list/sane-software@lists.globalcode.info/thread/LVFFEQREQ2LBZGWVJIFTZE2QV3AGF5RO/
b0e72d76cccf49e1ce32a691878e804d63048f5e v0.1
f07103582ef44c696abaf33d88d1a162bbf8f842 v0.2
8da11cce2c9838a975668d7980a2673886ee09e3 v0.3
9e5c3383ba5069b8ca4741fc2e561a04f4ed8441 v0.4