Fix typo in toc.yml for error 0x800f0831

Author: Simonx Xu

support/windows-server/toc.yml

@@ -3061,7 +3061,7 @@ items:
       href: ./installing-updates-features-roles/system-file-checker.md
     - name: Error 0x800705aa when Windows Update fails
       href: ./installing-updates-features-roles/error-0x800705aa-windows-update-fails.md
-    - name: Error 0x800f0831 installing updates
+    - name: Error 0x800f0831 when installing Windows updates
       href: ./installing-updates-features-roles/error-0x800f0831-installing-update.md
     - name: Error 0x800f0922 when installing Windows updates
       href: ./installing-updates-features-roles/error-0x800f0922-installing-windows-updates.md