docs: update link to RoutesService document

docs/en/Tutorials/Part-2.md

@@ -443,7 +443,7 @@ function configureRoutes(routes: RoutesService) {
 * `order` is the order of the menu item.
 * `layout` is the layout of the BooksModule's routes (there are three types of pre-defined layouts: `eLayoutType.application`, `eLayoutType.account` or `eLayoutType.empty`).
 
-For more information, see the [RoutesService document](https://docs.abp.io/en/abp/latest/UI/Angular/Modifying-the-Menu.md#via-routesservice).
+For more information, see the [RoutesService document](../UI/Angular/Modifying-the-Menu.md#via-routesservice).
 
 ### Service Proxy Generation