Clarify with commas (#31224)
Clarify with commas (#31224)

Adds a few commas where they could improve the clarity of the sentence.

- [X] Make sure the linting passes by running `yarn lint`


Co-authored-by: Tim Neutkens <ecfcf9b478237e4fa8a58848ec4cf84d56f8e529@users.noreply.github.com>
zeit/next.js,JeromeFitz/next.js,JeromeFitz/next.js,azukaru/next.js,azukaru/next.js,azukaru/next.js,zeit/next.js,azukaru/next.js,JeromeFitz/next.js,JeromeFitz/next.js,zeit/next.js