Added notes about contributing with links to github and bitbucket repos.
Added notes about contributing with links to github and bitbucket repos.

biomassives/mezzanine,damnfine/mezzanine,frankchin/mezzanine,emile2016/mezzanine,viaregio/mezzanine,adrian-the-git/mezzanine,geodesign/mezzanine,gbosh/mezzanine,dekomote/mezzanine-modeltranslation-backport,orlenko/plei,frankier/mezzanine,douglaskastle/mezzanine,Skytorn86/mezzanine,dovydas/mezzanine,orlenko/sfpirg,geodesign/mezzanine,orlenko/sfpirg,geodesign/mezzanine,webounty/mezzanine,wyzex/mezzanine,Cajoline/mezzanine,Kniyl/mezzanine,Skytorn86/mezzanine,spookylukey/mezzanine,webounty/mezzanine,promil23/mezzanine,biomassives/mezzanine,ZeroXn/mezzanine,stephenmcd/mezzanine,stbarnabas/mezzanine,christianwgd/mezzanine,saintbird/mezzanine,Cajoline/mezzanine,molokov/mezzanine,saintbird/mezzanine,dustinrb/mezzanine,wrwrwr/mezzanine,wbtuomela/mezzanine,mush42/mezzanine,vladir/mezzanine,promil23/mezzanine,frankchin/mezzanine,scarcry/snm-mezzanine,webounty/mezzanine,christianwgd/mezzanine,cccs-web/mezzanine,guibernardino/mezzanine,adrian-the-git/mezzanine,agepoly/mezzanine,Cicero-Zhao/mezzanine,orlenko/sfpirg,dsanders11/mezzanine,vladir/mezzanine,sjuxax/mezzanine,viaregio/mezzanine,gradel/mezzanine,dustinrb/mezzanine,wyzex/mezzanine,readevalprint/mezzanine,emile2016/mezzanine,Kniyl/mezzanine,wbtuomela/mezzanine,nikolas/mezzanine,PegasusWang/mezzanine,promil23/mezzanine,ZeroXn/mezzanine,christianwgd/mezzanine,tuxinhang1989/mezzanine,jerivas/mezzanine,fusionbox/mezzanine,wrwrwr/mezzanine,jerivas/mezzanine,Kniyl/mezzanine,eino-makitalo/mezzanine,AlexHill/mezzanine,gradel/mezzanine,SoLoHiC/mezzanine,scarcry/snm-mezzanine,vladir/mezzanine,douglaskastle/mezzanine,dekomote/mezzanine-modeltranslation-backport,theclanks/mezzanine,eino-makitalo/mezzanine,joshcartme/mezzanine,damnfine/mezzanine,molokov/mezzanine,jerivas/mezzanine,wyzex/mezzanine,nikolas/mezzanine,dovydas/mezzanine,biomassives/mezzanine,nikolas/mezzanine,viaregio/mezzanine,emile2016/mezzanine,damnfine/mezzanine,sjdines/mezzanine,readevalprint/mezzanine,spookylukey/mezzanine,joshcartme/mezzanine,gbosh/mezzanine,dekomote/mezzanine-modeltranslation-backport,readevalprint/mezzanine,mush42/mezzanine,batpad/mezzanine,joshcartme/mezzanine,dsanders11/mezzanine,jjz/mezzanine,tuxinhang1989/mezzanine,industrydive/mezzanine,saintbird/mezzanine,industrydive/mezzanine,frankier/mezzanine,jjz/mezzanine,stephenmcd/mezzanine,orlenko/plei,dovydas/mezzanine,fusionbox/mezzanine,agepoly/mezzanine,SoLoHiC/mezzanine,scarcry/snm-mezzanine,Skytorn86/mezzanine,ZeroXn/mezzanine,ryneeverett/mezzanine,jjz/mezzanine,agepoly/mezzanine,theclanks/mezzanine,spookylukey/mezzanine,mush42/mezzanine,ryneeverett/mezzanine,industrydive/mezzanine,PegasusWang/mezzanine,sjuxax/mezzanine,PegasusWang/mezzanine,sjdines/mezzanine,molokov/mezzanine,SoLoHiC/mezzanine,gbosh/mezzanine,dsanders11/mezzanine,Cicero-Zhao/mezzanine,eino-makitalo/mezzanine,frankchin/mezzanine,tuxinhang1989/mezzanine,theclanks/mezzanine,Cajoline/mezzanine,ryneeverett/mezzanine,AlexHill/mezzanine,sjuxax/mezzanine,frankier/mezzanine,stbarnabas/mezzanine,gradel/mezzanine,dustinrb/mezzanine,cccs-web/mezzanine,sjdines/mezzanine,orlenko/plei,wbtuomela/mezzanine,stephenmcd/mezzanine,douglaskastle/mezzanine,guibernardino/mezzanine,batpad/mezzanine,adrian-the-git/mezzanine