Adding new troubleshooting document

Author: kummanish

articles/mysql/TOC.yml

@@ -222,6 +222,8 @@
       href: howto-troubleshoot-query-performance.md
     - name: How to use views in sys schema
       href: howto-troubleshoot-sys-schema.md
+    - name: Troubleshoot data encryption
+      href: howto-data-encryption-troubleshoot.md
   - name: Advanced Threat Protection
     items:
     - name: Azure portal

articles/postgresql/TOC.yml

@@ -245,6 +245,8 @@
       items:
       - name: Troubleshoot connection errors
         href: howto-troubleshoot-common-connection-issues.md
+      - name: Troubleshoot data encryption
+        href: howto-data-encryption-troubleshoot.md
     - name: Advanced Threat Protection
       items:
       - name: Azure portal