Merge pull request #44564 from zdover23/wip-doc-2022-01-13-44150-cleanup-grafana...

doc/mgr: name data source in "Man Install & Config"

Reviewed-by: Alfonso Martínez <almartin@redhat.com>
Reviewed-by:  Laura Flores <lflores@redhat.com>

diff --cc doc/mgr/dashboard.rst
index 7139a2ead4d78a4dcaffa035f06fd33a335fb5f0,aa9f7af17466b3742c559c6d6ac93067428daa85..34e66cf38bd15b54bdcc7ea070a5eefb43e03b12
--- 1/doc/mgr/dashboard.rst
--- 2/doc/mgr/dashboard.rst
+++ b/doc/mgr/dashboard.rst
@@@ -561,12 -521,12 +561,14 @@@ on appropriate hosts, proceed with the 
        services run on a manager host will be restarted automatically on a different
        manager host if one Ceph Manager goes down.
  
- #.  Add Prometheus as data source to Grafana `using the Grafana Web UI
-     <https://grafana.com/docs/grafana/latest/features/datasources/add-a-data-source/>`_.
+ #. Add Prometheus as data source to Grafana `using the Grafana Web UI <https://grafana.com/docs/grafana/latest/features/datasources/add-a-data-source/>`_.
+ 
+    .. IMPORTANT:: 
+       The data source must be named "Dashboard1".
  
 -#.  Install the `vonage-status-panel and grafana-piechart-panel` plugins using::
 +#.  Install the `vonage-status-panel and grafana-piechart-panel` plugins using:
 +
 +    .. prompt:: bash $
  
        grafana-cli plugins install vonage-status-panel
        grafana-cli plugins install grafana-piechart-panel