Find definition of maintainers responsibilities and permissions

[finnlewis]

• [ ] define responsibilities
• [ ] define permissions
• [ ] define security requirement like 2fa (only accounts with 2fa to make releases and merge into protecte dbranchs)

[ekes]

Suggest:-

Responsibility: You are maintainer of a module; or commit to doing something generally.

Permissions: Only maintainers can merge to 1.x 2.x and release-1.x (only owners or some particular smaller group can delete repos)

Security: Maintainers and above have 2fa enabled.