Apply suggestions from code review

Co-Authored-By: Andreas Braun <[email protected]>

docs/en/reference/capped-collections.rst

@@ -91,11 +91,11 @@ You can drop the collection too if it already exists:
 
     $documentManager->getSchemaManager()->dropDocumentCollection('Category');
 
-If using Symfony in addition to Doctrine, use the following command to create the capped collection:
+Use the ``odm:schema:create`` command to create the database schema:
 
-.. code-block:: bash
+.. code-block:: console
 
-    php app/console --env=<env> doctrine:mongodb:schema:create
+    $ php mongodb.php odm:schema:create
 
 It must not exist when the command is invoked. It is not possible to convert an existing collection to a capped one using Doctrine. It is, however, possible to convert it by calling a `direct Mongo command`_.