added enabling TLS-e as a post-adoption requirement

Author: klgill

docs_user/modules/con_adoption-process-overview.adoc

@@ -33,3 +33,4 @@ Post-adoption tasks::
 For more information about updating your environment, see link:https://docs.redhat.com/en/documentation/red_hat_openstack_services_on_openshift/18.0/html/updating_your_environment_to_the_latest_maintenance_release/index[Updating your environment to the latest maintenance release].
 * Optional: Verify that you migrated all services from the Controller nodes, and then power off the nodes. If any services are still running in the Controller nodes, such as Open Virtual Networking (ML2/OVN), {object_storage_first_ref}, or {Ceph}, do not power off the nodes.
 * If you enabled the high availability for Compute instances (Instance HA) service, remove the Pacemaker components from your Compute nodes. For more information, see xref:enabling-high-availability-for-instances_data-plane[Enabling the high availability for Compute instances service].
+* Enable TLS Everywhere (TLS-e). For more information about enabling TLS-e after completing the adoption, see link:https://docs.redhat.com/en/documentation/red_hat_openstack_services_on_openshift/18.0/html-single/configuring_security_services/index#assembly_enabling-TLS-on-a-deployed-RHOSO-environment[Enabling TLS on a deployed RHOSO environment] in _Configuring security services_.