Update contributing.md
Update contributing.md
knozis/yadcf,knozis/yadcf,sohamkanade/yadcf,vchris88/yadcf,brainydfs/yadcf,Golfer/yadcf,vchris88/yadcf,brainydfs/yadcf,sohamkanade/yadcf,vedmack/yadcf,modulexcite/yadcf,vedmack/yadcf,modulexcite/yadcf,Golfer/yadcf