Update TOC.yml

Author: jeffpatt24

articles/storage/file-sync/TOC.yml

@@ -210,6 +210,8 @@
     href: https://azure.microsoft.com/updates/?category=storage
   - name: Azure File Sync release notes
     href: file-sync-release-notes.md
+  - name: Azure File Sync agent silent installation
+    href: file-sync-agent-silent-installation.md
   - name: Azure Files on Microsoft Q&A
     href: /answers/topics/azure-files.html
   - name: Azure Files on Stack Overflow