OADP-1931: Update description in CSV (openshift#1008)

[OADP-1931](https://issues.redhat.com/browse/OADP-1931) Improve Cluster Service Version YAML's Description fields

Incorporate feedback from [comment](https://issues.redhat.com/browse/OADP-1931?focusedId=22320719&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-22320719)

config/manifests/bases/oadp-operator.clusterserviceversion.yaml

@@ -324,8 +324,27 @@ spec:
         displayName: Phase
         path: phase
       version: v1
-  description: OADP (OpenShift API for Data Protection) operator sets up and installs
-    Data Protection Applications on the OpenShift platform.
+  description: |
+    **OpenShift API for Data Protection (OADP)** operator sets up and installs
+    Velero on the OpenShift platform, allowing users to backup and restore
+    applications.
+
+    Backup and restore Kubernetes resources and internal images, at the
+    granularity of a namespace, using a version of Velero appropriate for
+    the installed version of OADP.
+
+    OADP backs up Kubernetes objects and internal images by saving them as
+    an archive file on object storage. OADP backs up persistent volumes
+    (PVs) by creating snapshots with the native cloud snapshot API or with
+    the Container Storage Interface (CSI). For cloud providers that do not
+    support snapshots, OADP backs up resources and PV data with Restic.
+
+    * [Installing OADP for application backup and restore][install-doc]
+
+    * [Frequently Asked Questions][faq-doc]
+
+    [install-doc]: https://docs.openshift.com/container-platform/latest/backup_and_restore/application_backup_and_restore/installing/about-installing-oadp.html
+    [faq-doc]: https://access.redhat.com/articles/5456281
   displayName: OADP Operator
   icon:
   - base64data: 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