[2.0] Re-working contributing language for 2.2 branch

Hi guys!

This tweaks some of our language to work a bit better as we grow with more and more branches. I've just created the 2.2 branch (PR coming for some updates to it in a moment).

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | all
| Fixed tickets | no

Thanks!