simplifying incidents

Author: batamig

articles/sentinel/TOC.yml

@@ -929,9 +929,12 @@
   items:
   - name: Azure portal
     items: 
-    - name: Overview
+    - name: Sample incident investigation
       href: incident-investigation.md
-    - name: Investigate incidents
+    - name: Triage and manage your incidents
+      href: triage-manage-incidents.md
+      displayName: close incidents, search incidents, comment on incidents
+    - name: Investigate incidents in depth
       href: investigate-incidents.md
     - name: Tutorial - Investigate with UEBA
       href: investigate-with-ueba.md