Merge pull request #13837 from nextcloud/backport/13836/stable32

[stable32] 13770: Update Documentation: Federated Calendar Shares

Author: SebastianKrupinski

admin_manual/groupware/calendar.rst

@@ -149,7 +149,7 @@ Run the following command to disable creating new federated calendar shares for
 
   sudo -E -u www-data php occ config:app:set dav enableCalendarFederation --type=bool --value=false
 
-Note that existing shares will not be deleted when the feature is disabled.
+Note that existing shares will be deleted when the feature is disabled as they will fail to sync.
 
 Trash bin
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