docs: update celery docs

docs/install/configure-celery.rst

@@ -16,10 +16,10 b' In order to have install and configure C'
 
 1. Install RabbitMQ, see the documentation on the Celery website for
    `rabbitmq installation`_.
+
 2. Configure Celery in the
    :file:`home/{user}/.rccontrol/{instance-id}/rhodecode.ini` file.
-    Set the following minimal settings, that are set during
-    rabbitmq_ installation::
+   Set the following minimal settings, that are set during rabbitmq_ installation::
 
         broker.host =
         broker.vhost =