fix markup (#11147)

* fix markup for common return values

* Apply suggestion from review

plugins/modules/scaleway_function_namespace.py

@@ -80,7 +80,7 @@ options:
   secret_environment_variables:
     description:
       - Secret environment variables of the function namespace.
-      - Updating those values does not output a C(changed) state in Ansible.
+      - Updating those values does not output a RV(ignore:changed) state in Ansible.
       - Injected in functions at runtime.
     type: dict
     default: {}