TOC hints

Author: ggailey777

articles/azure-functions/TOC.yml

@@ -244,8 +244,9 @@
           href: /security/benchmark/azure/baselines/functions-security-baseline?toc=/azure/azure-functions/TOC.json
     - name: Reliability
       items:
-        - name: Availability zones 
+        - name: Reliability overview 
           href: ../reliability/reliability-functions.md?toc=/azure/azure-functions/TOC.json
+          displayName: availability zones, high-availability, zone redundancy
         - name: Migrate to a zone-redundant plan
           href: ../reliability/migrate-functions.md?toc=%2fazure%2fazure-functions%2ftoc.json
         - name: Geo-disaster recovery