Merge pull request #177738 from WilliamDAssafMSFT/20211026-add-ntelligent-insights-troubleshoot-performance-to-TOC

20211026 add intelligent-insights-troubleshoot-performance.md to TOC

Author: v-ccolin

articles/azure-sql/toc.yml

@@ -219,6 +219,8 @@
       items: 
       - name: Identify query performance issues
         href: identify-query-performance-issues.md
+      - name: Troubleshoot performance issues
+        href: database/intelligent-insights-troubleshoot-performance.md
       - name: Batching for performance
         href: performance-improve-use-batching.md
       - name: Load data with BCP