OCPBUGS#50691: Add link to prevent workload updates section

Author: xenolinux

updating/updating_a_cluster/control-plane-only-update.adoc

@@ -14,7 +14,7 @@ To do: Remove this comment once 4.13 docs are EOL.
 
 Due to fundamental Kubernetes design, all {product-title} updates between minor versions must be serialized.
 You must update from {product-title} <4.y> to <4.y+1>, and then to <4.y+2>. You cannot update from {product-title} <4.y> to <4.y+2> directly.
-However, administrators who want to update between two even-numbered minor versions can do so incurring only a single reboot of non-control plane hosts. 
+However, administrators who want to update between two even-numbered minor versions can do so incurring only a single reboot of non-control plane hosts.
 
 [IMPORTANT]
 ====
@@ -64,3 +64,4 @@ include::modules/updating-control-plane-only-layered-products.adoc[leveloffset=+
 * xref:../../operators/admin/olm-upgrading-operators.adoc#olm-upgrading-operators[Updating installed Operators]
 * xref:../../updating/updating_a_cluster/control-plane-only-update.adoc#updating-control-plane-only-update-console_control-plane-only-update[Performing a Control Plane Only update using the web console]
 * xref:../../updating/updating_a_cluster/control-plane-only-update.adoc#updating-control-plane-only-update-cli_control-plane-only-update[Performing a Control Plane Only update using the CLI]
+* xref:../../virt/updating/upgrading-virt.adoc#virt-preventing-workload-updates-during-control-plane-only-update_upgrading-virt[Preventing workload updates during a Control Plane Only update]