Update components/mailer.rst

fabpot · OskarStark · web-flow · commit 2f41e353a0a6 · 2019-09-02T18:41:23.000+02:00
Co-Authored-By: Oskar Stark &lt;oskarstark@googlemail.com&gt;
diff --git a/components/mailer.rst b/components/mailer.rst
@@ -109,6 +109,9 @@ Instead of choosing a specific protocol, you can also let Symfony pick the
 If you want to override the default host for a provider (to debug an issue with
 a requestb.in like service), change ``default`` by your host:
 
+
+.. code-block:: bash
+
     mailgun+https://KEY:DOMAIN@example.com
     mailgun+https://KEY:DOMAIN@example.com:99
 
