update toc file and touch formatting

Author: Jinyu Li

articles/ai-services/computer-vision/toc.yml

@@ -223,8 +223,6 @@ items:
       href: concept-face-liveness-detection.md
     - name: Face liveness abuse monitoring
       href: concept-liveness-abuse-monitoring.md
-    - name: Face liveness quick link (preview)
-      href: concept-face-liveness-quick-link.md
 
   - name: How-to guides
     items:
@@ -262,6 +260,8 @@ items:
       href: Tutorials/liveness.md
     - name: Add users to a Face identification app
       href: Tutorials/build-enrollment-app.md
+    - name: Face liveness quick link (preview)
+      href: Tutorials/liveness-quick-link.md
   - name: Samples
     href: https://aka.ms/FaceSamples
 

articles/ai-services/computer-vision/tutorials/liveness-quick-link.md

@@ -114,7 +114,6 @@ You can use the liveness quick link website, `liveness.face.azure.com`, to turn
       --header 'authorization: Bearer <session-authorization-token>'
     ```
 
-
 The following is an example response:
 
   ```json