added LDAP-RHSSO doc link

Author: vibhuti sodhi

docs/topics/mta-7-installing-web-console-on-openshift.adoc

@@ -254,7 +254,8 @@ oc get secret credential-mta-rhsso -o yaml
 To create a dedicated route for the RHSSO instance, set the `rhsso_external_access` parameter to `true` in the Tackle custom resource (CR) for {ProductShortName}.
 
 .Additional resources
-link:https://access.redhat.com/documentation/en-us/red_hat_single_sign-on/7.6/html/server_administration_guide/red_hat_single_sign_on_features_and_concepts[Red Hat Single Sign-On features and concepts]
+* link:https://docs.redhat.com/en/documentation/red_hat_single_sign-on/7.6/html-single/server_administration_guide/index#ldap[Configuring LDAP and Active Directory in RHSSO]
+* link:https://access.redhat.com/documentation/en-us/red_hat_single_sign-on/7.6/html/server_administration_guide/red_hat_single_sign_on_features_and_concepts[Red Hat Single Sign-On features and concepts]
 
 [id="mta-roles-personas-users-permissions_{context}"]
 === Roles, Personas, Users, and Permissions