Replace the TBD stub on the Permission Levels for Team Members wiki page

[ale210]

Overview

We need the "Permission Levels for Team Members" wiki page to actually have content, because it
is the only link under "Joining the DevOps team" on the wiki landing page and it currently reads
TBD followed by two bullet points describing what someone intended to write. A new member who
follows the one signposted path into the team lands on an empty page.

Action Items

• Document the GitHub team structure. The org has five teams per repo family — devops-read,
  devops-write, devops-merge, devops-maintain, devops-admin, and the same pattern for
  incubator-*. Explain what each grants and which one a new member starts on.
• Cover the difference between devops-security and incubator access, which is what the
  existing stub says the page is meant to be about.
• Cover AWS access separately from GitHub access — they are different systems with different
  levels, and conflating them is a likely source of confusion.
• Say who to ask for an access change and how, so the page ends with an action rather than a
  description.
• After pushing, follow the path a new member would take — wiki landing page → "Joining the
  DevOps team" → this page — and confirm it now answers "what can I do and how do I get more".

Resources/Instructions

• The page: Permission Levels for Team Members
• Linked from the "Joining the DevOps team" section of Home
• Teams: https://github.com/orgs/hackforla/teams
• Related but separate: Break-glass Account Guide
  covers emergency AWS access and should be linked, not duplicated
• The wiki is a separate git repo. git pull immediately before starting and again before pushing.