Merge pull request #90519 from openshift-cherrypick-robot/cherry-pick-90156-to-service-mesh-docs-3.0

[service-mesh-docs-3.0] OSSM-9052 cluster-wide fixes

Author: jeana-redhat

migrating/cluster-wide/ossm-migrating-cluster-wide.adoc

@@ -74,8 +74,7 @@ include::modules/ossm-migrating-workloads-using-the-istio-injection-label.adoc[l
 
 If you are using gateways, you must migrate them before you complete the migration process.
 
-* Migrating gateways from Service Mesh 2 to Service Mesh 3
-//* xref:../../migrating/migrating-gateways/ossm-migrating-gateways.adoc#ossm-migrating-gateways[Migrating gateways from Service Mesh 2 to Service Mesh 3]
+* xref:../../migrating/migrating-gateways/ossm-migrating-gateways.adoc#ossm-migrating-gateways[Migrating gateways]
 
 If you are not using gateways, and have verified your cluster-wide migration, create a default revision tag and relabel namespaces.
 
@@ -104,8 +103,7 @@ include::modules/ossm-migrating-workloads-using-the-istio-injection-label-with-c
 
 If you are using gateways, you must migrate them before you complete the migration process.
 
-* Migrating gateways from Service Mesh 2 to Service Mesh 3
-//* xref:../../migrating/migrating-gateways/ossm-migrating-gateways.adoc#ossm-migrating-gateways[Migrating gateways from Service Mesh 2 to Service Mesh 3]
+* xref:../../migrating/migrating-gateways/ossm-migrating-gateways.adoc#ossm-migrating-gateways[Migrating gateways]
 
 If you are not using gateways, and have verified your cluster-wide migration, create a default revision tag and relabel namespaces.
 
@@ -127,10 +125,11 @@ If you are using gateways, you must migrate them before you complete the migrati
 
 * xref:../../migrating/migrating-gateways/ossm-migrating-gateways.adoc[Migrating gateways]
 
-If you are using gateways, you can complete your migration.
+If you are not using gateways, you can complete your migration.
 
 * xref:../../migrating/done/ossm-migrating-complete.adoc[Completing the Migration]
 
+[role="_additional-resources"]
 [id="additional-resources_{context}"]
 == Additional resources