doc/mgr: edit telemetry (4 of x)

Improve the English and the formatting in doc/mgr/telemetry.rst. This
follows up on ceph#63476.

This commit edits the final part of doc/mgr/telemetry.rst.

Signed-off-by: Zac Dover <[email protected]>
(cherry picked from commit b199d75)

Author: zdover23

doc/mgr/telemetry.rst

@@ -326,8 +326,9 @@ running a command of the following form:
 Contact and Description
 -----------------------
 
-A contact and description can be added to the report.  This is
-completely optional, and disabled by default:
+A contact and description can be added to the report. This is optional and is
+disabled by default. Run commands of the following forms to add contacts and
+descriptions:
 
 .. prompt:: bash #
 
@@ -346,13 +347,13 @@ To participate in a leaderboard in the `public dashboards
    ceph config set mgr mgr/telemetry/leaderboard true
 
 The leaderboard displays basic information about the cluster. This includes the
-total storage capacity and the number of OSDs. To add a description of the
-cluster, run a command of the following form: 
+cluster's total storage capacity and the number of OSDs. To add a description
+of the cluster so that it can more easily be identified on the leaderboard, run
+a command of the following form: 
 
 .. prompt:: bash #
 
    ceph config set mgr mgr/telemetry/leaderboard_description 'Ceph cluster for Computational Biology at the University of XYZ'
 
 If the ``ident`` channel is enabled, its details will not be displayed in the
 leaderboard.
-