doc: added articles about PR communication in CONTRIBUTING.md#17902

Closed

SalameWilliam wants to merge 3 commits intonodejs:masterfrom SalameWilliam:master

+5

Commits on Dec 28, 2017

doc: added articles about PR communication in CONTRIBUTING.md
Salame William
committed
doc: fixed a forgotten comma
Salame William
committed

Commits on Dec 29, 2017

doc: moved links about PR communication to COLLABORATOR_GUIDE.md
Salame William
committed