Added reference to az.hpccache powershell module

Author: mikefrobbins

articles/hpc-cache/toc.yml

@@ -7,7 +7,7 @@
     href: hpc-cache-overview.md
 
 - name: Concepts
-  items: 
+  items:
   - name: Plan the aggregated namespace
     href: hpc-cache-namespace.md
 
@@ -18,7 +18,7 @@
   - name: Create the cache
     href: hpc-cache-create.md
   - name: Add storage
-    items: 
+    items:
     - name: Add storage targets
       href: hpc-cache-add-storage.md
     - name: Move data to storage targets (if needed)
@@ -37,18 +37,18 @@
       href: hpc-cache-edit-storage.md
   - name: Connect to the cache
     href: hpc-cache-mount.md
-  - name: Manage the cache 
+  - name: Manage the cache
     href: hpc-cache-manage.md
   - name: Configure optional settings
     href: configuration.md
-
 - name: Reference
   items:
   - name: Azure CLI
     href: /cli/azure/ext/hpc-cache/hpc-cache
-
+  - name: Azure PowerShell
+    href: /powershell/module/Az.HPCCache
 - name: Resources
-  items: 
+  items:
   - name: Open a support ticket
     href: hpc-cache-support-ticket.md
   - name: Set up Azure CLI for Azure HPC Cache