Update TOC.yml

Author: jmmason70

articles/operator-nexus/TOC.yml

@@ -63,7 +63,9 @@
             - name: Technical requirements for Isolation Domains
               href: reference-isolation-domain-technical-requirements.md
         - name: Access Control Lists
-          href: concepts-access-control-lists.md
+          href: Network Fabric OptionA and OptionB
+        - name: Network Packet Broker
+          href: concepts-network-fabric-optionA-optionB.md
     - name: Nexus Kubernetes Cluster
       expanded: false
       items: