Merge pull request #89592 from xenolinux/update-note-hcp

OCPBUGS#52185: Add unique value for topology.kubernetes.io/zone in HCP

Author: xenolinux

modules/hcp-bm-prereqs.adoc

@@ -15,8 +15,8 @@
 $ oc get managedclusters local-cluster
 ----
 
-* You must add the `topology.kubernetes.io/zone` label to your bare metal hosts on your management cluster. Otherwise, all of the hosted control plane pods are scheduled on a single node, causing single point of failure.
+* You must add the `topology.kubernetes.io/zone` label to your bare-metal hosts on your management cluster. Ensure that each host has a unique value for `topology.kubernetes.io/zone`. Otherwise, all of the hosted control plane pods are scheduled on a single node, causing a single point of failure.
 
 * To provision {hcp} on bare metal, you can use the Agent platform. The Agent platform uses the central infrastructure management service to add worker nodes to a hosted cluster. For more information, see _Enabling the central infrastructure management service_.
 
-* You need to install the hosted control plane command line interface.
+* You need to install the hosted control plane command line interface.