docs(contributing): fix conventions link
docs(contributing): fix conventions link

Closes #5434
Fixes #5429

icfantv/bootstrap,mabi/bootstrap,vfiles/bootstrap,christor/bootstrap,icfantv/bootstrap,benhalverson/bootstrap,benhalverson/bootstrap,Kpler/bootstrap,292388900/bootstrap,burlhock/bootstrap,RobJacobs/bootstrap,wesleycho/bootstrap,caoruiy/bootstrap,infowrap/bootstrap,byronigoe/bootstrap,burlhock/bootstrap,benhalverson/bootstrap,fpipita/bootstrap,Servoy/bootstrap,Servoy/bootstrap,mabi/bootstrap,benhalverson/bootstrap,Kpler/bootstrap,Foxandxss/bootstrap,looker/bootstrap,shootermv/bootstrap,infowrap/bootstrap,BookingBug/bootstrap,caoruiy/bootstrap,RobJacobs/bootstrap,292388900/bootstrap,byronigoe/bootstrap,shootermv/bootstrap,fpipita/bootstrap,vfiles/bootstrap,BookingBug/bootstrap,looker/bootstrap,wesleycho/bootstrap,Foxandxss/bootstrap,angular-ui/bootstrap,angular-ui/bootstrap,christor/bootstrap