Adding section on 100 reviewer limit to docs
What does this MR do and why?
This is the docs update for https://gitlab.com/gitlab-org/gitlab/-/issues/343362 - limiting the number of reviewers to 100.
The implementation can be found at !91406 (merged)
The relevant feature flag is: limit_reviewer_and_assignee_size
MR acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
-
I have evaluated the MR acceptance checklist for this MR.