fixed warnings in toc file

Author: SnehaSudhirG

articles/update-manager/toc.yml

@@ -20,15 +20,15 @@ items:
   - name: Support matrix
     items:
     - name: Supported regions
-    - href: supported-regions.md
+      href: supported-regions.md
   - name: Supported operating systems
     items:
     - name: Check for Updates, One time update, Periodic assessment and Customer managed Schedules
-    - href: support-matrix-updates.md
+      href: support-matrix-updates.md
     - name: Automatic VM Guest Patching
-    - href: support-matrix-automatic-guest-patching.md
+      href: support-matrix-automatic-guest-patching.md
     - name: Support matrix
-    - href: support-matrix.md
+      href: support-matrix.md
 - name: Quickstarts
   items:
   - name: Check and install on-demand updates