Update composer command example

Author: alamirault

components/runtime.rst

@@ -329,7 +329,7 @@ You can also configure ``extra.runtime`` in ``composer.json``:
         }
     }
 
-Then, update your Composer files (running ``composer update``, for instance),
+Then, update your Composer files (running ``composer dump-autoload``, for instance),
 so that the ``vendor/autoload_runtime.php`` files gets regenerated with the new option.
 
 The following options are supported by the ``SymfonyRuntime``:

configuration/override_dir_structure.rst

@@ -49,7 +49,7 @@ define the ``runtime.dotenv_path`` option in the ``composer.json`` file:
         }
     }
 
-Then, update your Composer files (running ``composer update``, for instance),
+Then, update your Composer files (running ``composer dump-autoload``, for instance),
 so that the ``vendor/autoload_runtime.php`` files gets regenerated with the new
 ``.env`` path.