Docs: define RBAC n/a for a scope (#65782)

* define n/a scope

* Update docs/sources/administration/roles-and-permissions/access-control/custom-role-actions-scopes/index.md

Co-authored-by: Christopher Moyer <35463610+chri2547@users.noreply.github.com>

* linting

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Co-authored-by: Christopher Moyer <35463610+chri2547@users.noreply.github.com>

docs/sources/administration/roles-and-permissions/access-control/custom-role-actions-scopes/index.md

@@ -207,3 +207,4 @@ The following list contains role-based access control scopes.
 | `settings:*`                                    | Restrict an action to a subset of settings. For example, `settings:*` matches all settings, `settings:auth.saml:*` matches all SAML settings, and `settings:auth.saml:enabled` matches the enable property on the SAML settings.                   |
 | `teams:*` <br> `teams:id:*`                     | Restrict an action to a set of teams from an organization. For example, `teams:*` matches any team and `teams:id:1` matches the team whose ID is `1`.                                                                                              |
 | `users:*` <br> `users:id:*`                     | Restrict an action to a set of users from an organization. For example, `users:*` matches any user and `users:id:1` matches the user whose ID is `1`.                                                                                              |
+| `n/a`                                           | `n/a` means not applicable. If an action has `n/a` specified for the scope, then the action does not require a scope. For example, the `teams:create` action does not require a scope and allows users to create teams.                            |