Added CLI & PowerShell links to Reference

Author: v-deken

articles/cognitive-services/Computer-vision/toc.yml

@@ -132,7 +132,7 @@
 - name: Reference
   items: 
   - name: Azure CLI
-    href: https://docs.microsoft.com/en-us/cli/azure/cognitiveservices?view=azure-cli-latest#az_cognitiveservices_list
+    href: https://docs.microsoft.com/cli/azure/cognitiveservices?view=azure-cli-latest#az_cognitiveservices_list
   - name: Azure PowerShell
     href: https://aka.ms/azure-powershell-cognitiveservices
   - name: Computer Vision API v2.0