Add info file.

README.md

@@ -7,7 +7,7 @@
 * Go to `admin/people/permissions`: there should be a permission `Move menu links across menus`
 * Go to `admin/structure/menu/manage/%menu` (e.g. `admin/structure/menu/manage/main`)
 * Add or edit a menu link
-  * Users *with* the permission `Move menu links across menus` will see options from *all* menus under the dropdown `Parent link`, and as a result will be able to move the menu link to another menu
+  * Users *with* the permission `Move menu links across menus` will see options from *all* menus under the dropdown `Parent link`, and as a result will be able to move the menu link to another menu (default behaviour of Drupal core)
   * Users *without* this permission will only see options from the *current* menu (e.g. the main menu), and as a result will not be able to move the menu link to another menu
 
 # Support

menu_lock.info.yml

+name: Menu Lock
+type: module
+description: Locks menu links into their menu
+package: Administration
+core_version_requirement: ^9
+dependencies:
+  - drupal:menu_ui
+  - drupal:menu_link_content