Small changes to TOC for clarity

Author: matternst7258

articles/operator-nexus/TOC.yml

@@ -136,31 +136,28 @@
         - name: On-Premises Operator Nexus Instance
           expanded: false
           items:
-            - name: Operator Nexus Instance Lifecycle Management
-              expanded: false
-              items:
-                - name: Before you start Operator Nexus platform deployment
-                  href: howto-platform-prerequisites.md
-                - name: Network Fabric
-                  href: howto-configure-network-fabric.md
-                - name: Cluster
-                  href: howto-configure-cluster.md
-                - name: Cluster Template JSON Example
-                  href: cluster-jsonc-example.md
-                - name: Cluster Parameters JSON Example
-                  href: cluster-parameters-jsonc-example.md
-                - name: Instance Readiness Testing
-                  href: howto-run-instance-readiness-testing.md
-                - name: Cluster Upgrades
-                  href: howto-cluster-runtime-upgrade.md
-                - name: Cluster Upgrades With PauseRack Startegy
-                  href: howto-cluster-runtime-upgrade-with-pauserack-strategy.md
-                - name: How to upgrade Network Fabric
-                  href: howto-upgrade-nexus-fabric.md
-                - name: Credential Rotation
-                  href: howto-credential-rotation.md
-                - name: Credential Manager Key Vault
-                  href: how-to-credential-manager-key-vault.md
+              - name: Before you start Operator Nexus platform deployment
+                href: howto-platform-prerequisites.md
+              - name: Network Fabric
+                href: howto-configure-network-fabric.md
+              - name: Cluster
+                href: howto-configure-cluster.md
+              - name: Cluster Template JSON Example
+                href: cluster-jsonc-example.md
+              - name: Cluster Parameters JSON Example
+                href: cluster-parameters-jsonc-example.md
+              - name: Instance Readiness Testing
+                href: howto-run-instance-readiness-testing.md
+              - name: Cluster Upgrades
+                href: howto-cluster-runtime-upgrade.md
+              - name: Cluster Upgrades With PauseRack Startegy
+                href: howto-cluster-runtime-upgrade-with-pauserack-strategy.md
+              - name: Network Fabric Upgrades
+                href: howto-upgrade-nexus-fabric.md
+              - name: Credential Rotation
+                href: howto-credential-rotation.md
+              - name: Credential Manager Key Vault
+                href: how-to-credential-manager-key-vault.md
     - name: Network Fabric
       expanded: false
       items: