Fix ACStor TOC

Author: eh8

articles/storage/container-storage/TOC.yml

@@ -11,28 +11,28 @@
     href: install-container-storage-aks.md
   - name: Use with local NVMe
     href: use-container-storage-with-local-disk.md
-  - name: Use with Elastic SAN
+  - name: Use with Azure Elastic SAN
     href: use-container-storage-with-elastic-san.md
   - name: Remove Azure Container Storage
     href: remove-container-storage.md
 - name: Concepts
   items:
+  - name: Frequently asked questions
+    href: container-storage-faq.md
   - name: Enable zone-redundant storage
     href: enable-multi-zone-redundancy.md
-  - name: Configure encryption
-    href: configure-encryption-for-elastic-san.md
   - name: Resize persistent volumes
     href: resize-volume.md
   - name: Volume snapshots
     href: volume-snapshot-restore.md
+  - name: Configure encryption
+    href: configure-encryption-for-elastic-san.md
   - name: Connect with Prometheus
     href: enable-monitoring.md
   - name: Connect with Grafana
     href: use-grafana-dashboard.md
-  - name: Billing
+  - name: Understand billing
     href: container-storage-billing.md 
-  - name: Frequently asked questions
-    href: container-storage-faq.md
 - name: Resources
   items:
   - name: Pricing for Azure Container Storage