Merge pull request #79716 from JoeAldinger/OCPBUGS-35840

OCPBUGS-35480:updates prerequisites for OVN-K migration

Author: JoeAldinger

modules/nw-ovn-kubernetes-migration.adoc

@@ -24,7 +24,8 @@ Perform the migration only when an interruption in service is acceptable.
 * A recent backup of the etcd database is available.
 * A reboot can be triggered manually for each node.
 * The cluster is in a known good state, without any errors.
-* Before migration to OVN-Kubernetes, a security group rule must be in place to allow UDP packets on port `6081` for all nodes on all cloud platforms.
+* Before migration to the OVN-Kubernetes plugin, a security group rule must be in place to allow UDP packets on port `6081` for all nodes on all cloud platforms.
+* Before migration to the OVN-Kubernetes plugin, you must either set all timeouts for webhooks to `3` seconds or remove the webhooks.
 
 .Procedure