permissions documentation expansion

[notebk]

Expanding Permissions Documentation

The documentation has a section where it discusses req.user._permissions but it's in the module and template section and not in the permissions section. I think it makes sense to include it in the permissions section so it's easier to find.

Proposed solution

after the section "Checking permissions in your own code" I would add this:

To check for permissions in templates with nunjucks, use data.user._permissions, an object, with boolean properties for permissions (e.g., admin: true or simply {} if there is no user).