doc/releases: edit warning for balancer issues

Rephrase the balancer-related warning issued to people upgrading to
Ceph 19.2.0.

Follows ceph#61429

Co-authored-by: Anthony D'Atri <[email protected]>
Signed-off-by: Zac Dover <[email protected]>

Author: zdover23

doc/releases/squid.rst

@@ -13,11 +13,12 @@ v19.2.0 Squid
    68215 <https://tracker.ceph.com/issues/68215>`_ before attempting an upgrade
    to 19.2.0.
 
-   Some users have encountered a Ceph Manager balancer module issue when upgrading 
-   to Ceph 19.2.0 that requires one to disable the balancer in order for expected 
-   cluster operations. A fix has been implemented in 19.2.1, please read 
-   `Tracker Issue 68657 <https://tracker.ceph.com/issues/68657>`_ before attempting 
-   an upgrade.
+   Some users have encountered a Ceph Manager balancer module issue when
+   upgrading to Ceph 19.2.0. If you encounter this issue, disable the balancer
+   by running the command ``ceph balancer off`` and the cluster will operate as
+   expected. A fix has been implemented in 19.2.1, please read `Tracker Issue
+   68657 <https://tracker.ceph.com/issues/68657>`_ before attempting an
+   upgrade.
 
 Highlights
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