OADP mod docs for MCG and ODF

Signed-off-by: Shruti Deshpande <shdeshpa@redhat.com>

backup_and_restore/application_backup_and_restore/installing/installing-oadp-mcg.adoc

@@ -10,6 +10,7 @@ include::_attributes/attributes-openshift-dedicated.adoc[]
 
 toc::[]
 
+[role="_abstract"]
 Multicloud Object Gateway (MCG) is a component of {rh-storage}, and you can configure it as a backup location in the `DataProtectionApplication` custom resource (CR).
 You can install the {oadp-first} with MCG by installing the OADP Operator. The Operator installs link:https://{velero-domain}/docs/v{velero-version}/[Velero {velero-version}].
 
@@ -50,7 +51,6 @@ include::modules/oadp-configuring-node-agents.adoc[leveloffset=+2]
 include::modules/oadp-enabling-csi-dpa.adoc[leveloffset=+2]
 include::modules/oadp-about-disable-node-agent-dpa.adoc[leveloffset=+2]
 
-[discrete]
 [role="_additional-resources"]
 .Additional resources
 

backup_and_restore/application_backup_and_restore/installing/installing-oadp-ocs.adoc

@@ -9,6 +9,7 @@ include::_attributes/common-attributes.adoc[]
 
 toc::[]
 
+[role="_abstract"]
 You install the OpenShift API for Data Protection (OADP) with {rh-storage} by installing the OADP Operator and configuring a backup location and a snapshot location. Then, you install the Data Protection Application.
 
 include::snippets/oadp-mtc-operator.adoc[]

modules/migration-configuring-mcg.adoc

@@ -10,6 +10,7 @@
 [id="migration-configuring-mcg_{context}"]
 = Retrieving Multicloud Object Gateway credentials
 
+[role="_abstract"]
 ifdef::installing-3-4,installing-mtc[]
 You must retrieve the Multicloud Object Gateway (MCG) credentials and S3 endpoint, which you need to configure MCG as a replication repository for the {mtc-first}.
 

modules/oadp-creating-object-bucket-claim.adoc

@@ -6,6 +6,7 @@
 [id="oadp-creating-object-bucket-claim_{context}"]
 = Creating an Object Bucket Claim for disaster recovery on {rh-storage}
 
+[role="_abstract"]
 If you use cluster storage for your Multicloud Object Gateway (MCG) bucket `backupStorageLocation` on {rh-storage}, create an Object Bucket Claim (OBC) using the OpenShift Web Console.
 
 [WARNING]

modules/oadp-odf-cpu-memory-requirements.adoc

@@ -6,6 +6,7 @@
 [id="oadp-odf-cpu-memory-requirements_{context}"]
 = Adjusting Ceph CPU and memory requirements based on collected data
 
+[role="_abstract"]
 The following recommendations are based on observations of performance made in the scale and performance lab. The changes are specifically related to {odf-first}. If working with {odf-short}, consult the appropriate tuning guides for official recommendations.
 
 [id="oadp-odf-config-cpu-memory-requirements_{context}"]