Spelling and codespelling corrections from community PR

- Made the choice not to pull in the CI tools due to the possibility of it blocking PRs.

Co-Authored By: Lila Yasin <89486372+djyasin@users.noreply.github.com>

docs/rbac.md

@@ -158,7 +158,7 @@ Now that your model is a resource and has a `Role` defined, you can begin to acc
     >>> user = User.objects.first()
     >>> user in document.read_role
     False  # not accessible by default
-    >>> document.readonly_role.memebers.add(user)
+    >>> document.readonly_role.members.add(user)
     >>> user in document.read_role
     True   # now it is accessible
     >>> user in document.admin_role