Add region definitions to Support Glossary

Why is this change being made?

Provide a detailed answer to the question on why this change is being proposed, in accordance with our value of Transparency.

Please add the details saying why, not just what in this section. Example: We have discussed the topic in Slack - (copy of Slack conversation). The current process is not efficient, this MR makes the description of X more clear, and helps move Y forward.

I'm adding definitions so that people can find them.

Author and Reviewer Checklist

Please verify the check list and ensure to tick them off before the MR is merged.

• Provided a concise title for this Merge Request (MR)
• Added a description to this MR explaining the reasons for the proposed change, per say why, not just what
  • Copy/paste the Slack conversation to document it for later, or upload screenshots. Verify that no confidential data is added, and the content is SAFE
• Assign reviewers for this MR to the correct Directly Responsible Individual/s (DRI)
  • If the DRI for the page/s being updated isn’t immediately clear, then assign it to one of the people listed in the Maintained by section on the page being edited
  • If your manager does not have merge rights, please ask someone to merge it AFTER it has been approved by your manager in #mr-buddies
  • The when to get approval handbook section explains the workflow in more detail
• For transparency, share this MR with the audience that will be impacted.
  • Team: For changes that affect your direct team, share in your group Slack channel
  • Department: If the update affects your department, share the MR in your department Slack channel
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  • Company: If the update affects all (or the majority of) GitLab team members, post an update in #whats-happening-at-gitlab linking to this MR
    • For high-priority company-wide announcements work with the internal communications team to post the update in #company-fyi and align on a plan to circulate in additional channels like the "While You Were Iterating" Newsletter

Commits

• Add region definitions

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added HandbookContent label

assigned to @klang

enabled automatic add to merge train when checks pass

resolved all threads

aborted automatic add to merge train because the source branch was updated. Learn more.

added 1 commit

• 669dd1d8 - Apply 1 suggestion(s) to 1 file(s)

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approved this merge request

enabled automatic add to merge train when checks pass

cancelled automatic add to merge train

resolved all threads

added 1 commit

• d4d3f946 - Apply 1 suggestion(s) to 1 file(s)

Compare with previous version

enabled automatic add to merge train when checks pass

added this merge request to the merge train at position 3

removed this merge request from the merge train because failed to merge. Merge request is not mergeable

started a merge train

merged

mentioned in commit 0b09ba08