TELCODOCS-971 Make Enhanced SRO cluster upgrade support information more findable/accessible

Author: slovern

hardware_enablement/psap-special-resource-operator.adoc

@@ -39,3 +39,4 @@ include::modules/psap-special-resource-operator-metrics.adoc[leveloffset=+1]
 * For information about restoring the Image Registry Operator state before using the Special Resource Operator, see
 xref:../registry/configuring-registry-operator.adoc#registry-removed_configuring-registry-operator[Image registry removed during installation].
 * For details about installing the NFD Operator see xref:../psap-node-feature-discovery-operator.adoc#installing-the-node-feature-discovery-operator_node-feature-discovery-operator[Node Feature Discovery (NFD) Operator].
+* For information about updating a cluster that includes the Special Resource Operator, see xref:../updating/updating-clusters-sro.adoc[Updating a cluster that includes the Special Resource Operator].