Merge pull request #97642 from openshift-cherrypick-robot/cherry-pick-97257-to-enterprise-4.16

[enterprise-4.16] [OCPBUGS-56468]: Clarifying reqs to restore to a previous cluster state

Author: lpettyjo

modules/dr-restoring-cluster-state.adoc

@@ -32,6 +32,7 @@ When you restore your cluster, you must use an `etcd` backup that was taken from
 * A healthy control plane host to use as the recovery host.
 * SSH access to control plane hosts.
 * A backup directory containing both the `etcd` snapshot and the resources for the static pods, which were from the same backup. The file names in the directory must be in the following formats: `snapshot_<datetimestamp>.db` and `static_kuberesources_<datetimestamp>.tar.gz`.
+* Nodes must be accessible or bootable.
 
 [IMPORTANT]
 ====