Add Working Groups to the List of Roles

+1 on this. I always forget I have access to create contributor roles at https://www.drupal.org/node/add/contributor-role → (since it's not linked anywhere that I can find), but I don't know which permissions grant that.

We probably want to list roles or specify specific roles in the issue summary to create. Looking at some similar roles in working groups:

- Confilct resolution team member → is a role inside the Community Working Group though it may not be clear that it is part of that group.
- Community health team member → is a role inside the Community Working Group though it may not be clear that it is part of that group.
- Licensing working group member → is a bit clearer for the LWG.
- Coding standards committee member → is part of the TWG. That page links to the charter, which is nice.