[M] Change in coreboot[master]: /: Update and rewrite README.md

[Martin L Roth (Code Review)]

Attention is currently required from: Felix Singer, Matt DeVillier, Angel Pons, Martin Roth.

Martin L Roth has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/67119 )

Change subject: /: Update and rewrite README.md
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Patch Set 5:

(3 comments)

File README.md:

https://review.coreboot.org/c/coreboot/+/67119/comment/0728134e_768936f5 
PS4, Line 27: `git clone https://review.coreboot.org/coreboot.git%60.
> Maybe point to `https://review.coreboot. […]

This has nothing to do with gerrit, this is pure git.  Nothing should be changing here without needing a pretty significant update.

https://review.coreboot.org/c/coreboot/+/67119/comment/a736ea1d_8a563559 
PS4, Line 37: suggest
> What does "suggest" mean here?

will change to 'accept'

https://review.coreboot.org/c/coreboot/+/67119/comment/771bdecf_37a54269 
PS4, Line 179:
> There's also commonlib/bsd, should it be mentioned?

Yes, good point.