Adds a note about superuser permission requiring staff permission as well. Fixes #2566

[scetron]

Closes: #2566

What's Changed

Clarified Documentation

TODO

• [x] Explanation of Change(s)
• [ ] Added change log fragment(s) (for more information see the documentation)
• [x] Attached Screenshots, Payload Example
• [x] Unit, Integration Tests
• [x] Documentation Updates (when adding/changing features)
• [x] Example Plugin Updates (when adding/changing features)
• [x] Outline Remaining Work, Constraints from Design