update

Author: mrbullwinkle

articles/ai-services/openai/toc.yml

@@ -233,6 +233,22 @@ items:
       href: ./tutorials/embeddings.md
     - name: Fine-tuning GPT-4o mini
       href: ./tutorials/fine-tune.md
+- name: Security & Governance
+  items:
+    - name: Use virtual networks
+      href: ../cognitive-services-virtual-networks.md?context=/azure/ai-services/openai/context/context
+    - name: Encryption of data at rest
+      href: encrypt-data-at-rest.md
+    - name: Managed identity
+      href: ./how-to/managed-identity.md
+    - name: Role-based access control (Azure RBAC)
+      href: ./how-to/role-based-access-control.md
+    - name: Business continuity & disaster recovery (BCDR)
+      href: ./how-to/business-continuity-disaster-recovery.md
+    - name: Use your data
+      items:
+      - name: Network and access configuration
+        href: ./how-to/on-your-data-configuration.md
 - name: Responsible AI
   items:
     - name: Overview