Update articles/network-watcher/toc.yml

Co-authored-by: Hussein Al Kazwini <[email protected]>

Author: shijaiswal

articles/network-watcher/toc.yml

@@ -177,7 +177,7 @@
     href: flow-logs-read.md
   - name: Traffic analytics
     items:
-    - name: Apply Zero Trust principles to segment Azure network
+    - name: Overview
       href: traffic-analytics.md
     - name: Apply Zero Trust principles to segment Azure network
       href: traffic-analytics-zero-trust.md