update Frontdoor to Monitoring and Logging

- Change AFD toc.yml Monitor to Monitoring and Logging.

Author: tobystic

articles/web-application-firewall/toc.yml

@@ -141,7 +141,7 @@
       href: ./afds/waf-front-door-rate-limit-powershell.md
     - name: Configure a geo-filtering WAF policy
       href: ./afds/waf-front-door-tutorial-geo-filtering.md
-    - name: Monitor and logging
+    - name: Monitoring and logging
       href: ./afds/waf-front-door-monitor.md
   - name: Using Microsoft Sentinel with Web Application Firewall
     href: waf-sentinel.md