Newcomers_Guide: Fix ``coala-analyzer``->``coala``
Newcomers_Guide: Fix ``coala-analyzer``->``coala``

virresh/documentation,lusy/coala-documentation,cristinabuciu/documentation,Asnelchristian/documentation,coala/documentation,abhishekbundela/documentation,coala/documentation,Warewolf96/documentation,coala/documentation,AnishHota/documentation,rhemon/documentation,kshitijkg01/documentation,Kevchen/documentation,Akki356/documentation