Update gnocchi.rst

web/support/kb/openstack/gnocchi.rst

@@ -7,12 +7,15 @@ Prerequisites
 `Gnocchi` uses `Ceilometer` to collect metric data, but it replaces the data storage,
 the collection and its API functionality.
 
+Install Ceilometer
+------------------
+Juju
+....
 The `Juju` charm `Ceilometer <https://jujucharms.com/ceilometer/249>`_ with
 revision > 248 should be used. 
 
-Install Ceilometer
-------------------
-From packages:
+Manual
+......
 
 See https://docs.openstack.org/project-install-guide/telemetry/ocata/install-base-ubuntu.html
 ::