TOC FAQ fix

Author: bwren

articles/azure-monitor/toc.yml

@@ -1235,7 +1235,7 @@ items:
       - name: Overview
         href: insights/sql-insights-overview.md
       - name: FAQ
-        href: /azure/azure-monitor/faq#sql-insights-preview
+        href: /azure/azure-monitor/faq#sql-insights-(preview)
       - name: Enable
         href: insights/sql-insights-enable.md
       - name: Alerts