Add documentation for super admin

_toc.yml

@@ -68,6 +68,7 @@ entries:
     title: User and access management
     entries:
     - file: docs/platform/howto/manage-org-users
+    - file: docs/platform/howto/make-super-admin
     - file: docs/platform/howto/list-user-profile
       entries:
       - file: docs/platform/howto/edit-user-profile

docs/platform/concepts/projects_accounts_access.rst

@@ -29,6 +29,12 @@ Grouping your projects in organizations and organizational units lets you centra
 
 * Billing groups - Specific to a single organization or organizational unit and cannot be shared between them
 
+Super admin
+~~~~~~~~~~~~
+
+Super admin have full access to the organization, including all organizational units, projects, and services. Users are automatically made super admin when they create an organization, and they can :doc:`make other users super admin </docs/platform/howto/make-super-admin>`.
+
+
 Projects
 --------
 

docs/platform/howto/make-super-admin.rst

@@ -0,0 +1,17 @@
+Make users super admin
+=======================
+
+Super admin have full access to an organization and its settings as well as all of its organizational units, projects, and services. 
+
+Make a user a super admin 
+--------------------------
+
+To give a user full access to your organization:
+
+#. In the organization, click **Admin**.
+
+#. Click **Users**.
+
+#. Find the user and click **Actions** > **Make super admin**.
+
+To revoke super admin privileges for a user, follow the same steps and select **Revoke super admin**.