OSDOCS-3181: Added the peristent storage book to OSD.

_topic_maps/_topic_map_osd.yml

@@ -163,6 +163,17 @@ Topics:
 - Name: Troubleshooting monitoring issues
   File: osd-troubleshooting-monitoring-issues
 ---
+Name: Storage
+Dir: storage
+Distros: openshift-dedicated
+Topics:
+- Name: Persistent storage
+  Dir: persistent_storage
+  Distros: openshift-dedicated
+  Topics:
+    - Name: Persistent storage using AWS EFS
+      File: osd-persistent-storage-aws
+---
 Name: Applications
 Dir: applications
 Distros: openshift-dedicated

storage/persistent_storage/osd-persistent-storage-aws.adoc

@@ -26,7 +26,6 @@ The high-level process to enable EFS on a cluster is:
 ifdef::openshift-dedicated[]
 * Customer Cloud Subscription (CCS) for an {product-title} cluster
 endif::[]
-
 ifdef::openshift-rosa[]
 * A {product-title} cluster
 endif::[]