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Add more things to CONTRIBUTING.md (#101875)

* Add more things to CONTRIBUTING.md

* I forgot about QA!
I
Ian Hickson committed
ff9d6e5e339fa3f8af64199f95bbfe5ecb2ddd4e
Parent: 0575932
Committed by GitHub <noreply@github.com> on 4/14/2022, 3:48:29 PM