Added Diagram for nexus shared volume

Author: Soumya Maitra

articles/operator-nexus/concepts-storage.md

@@ -52,6 +52,11 @@ status:
 
 In situations where a shared file system is required, the *nexus-shared* storage class is available. This storage class provides a shared storage solution by enabling multiple pods in the same Nexus Kubernetes cluster to concurrently access and share the same volume. The *nexus-shared* storage class is backed by an NFS storage service. This NFS storage service (storage pool currently limited to a maximum size of 1TiB) is available per Cloud Service Network (CSN). Any Nexus Kubernetes cluster attached to the CSN can provision persistent volume from this shared storage pool. Nexus-shared supports both Read Write Once (RWO) and Read Write Many (RWX) access modes. What that means is that the workload applications can make use of either of these access modes to access the shared storage.
 
+<!--- IMG ![Nexus Shared Volume](Docs/media/nexus-shared-volume.png) IMG --->
+:::image type="content" source="media/nexus-shared-volume.png" alt-text="Diagram depicting how nexus-shared provisions a volume for a workload in Nexus Kubernetes Cluster":::
+
+Figure: Nexus Shared Volume
+
 Although the performance and availability of *nexus-shared* are sufficient for most applications, we recommend that workloads with heavy I/O requirements use the *nexus-volume* option for optimal performance.
 
 #### Read Write Once (RWO)