[M] Change in flashrom[master]: doc: Add Team page which describes Gerrit groups

[Anastasia Klimchuk (Code Review)]

Attention is currently required from: Alexander Goncharov, Angel Pons, Edward O'Callaghan, Peter Marheine, Stefan Reinauer, Thomas Heijligen.

Anastasia Klimchuk has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/76075?usp=email )

Change subject: doc: Add Team page which describes Gerrit groups
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Patch Set 1:

(1 comment)

Patchset:

PS1: 
Comments very welcome!

This page is new and describes Gerrit groups that used to be completely undocumented.
I think documentation is useful from various points of view:
for group members to know what they are doing,
and also for contributors who may want to join the groups in future, they can see what responsibilities to expect.