Fixed toc link

Author: jboback

articles/cognitive-services/language-service/toc.yml

@@ -1075,7 +1075,7 @@ items:
     - name: REST API
       items:
         - name: Document summarization
-          href: https://go.microsoft.com/fwlink/?linkid=2195178
+          href: https://go.microsoft.com/fwlink/?linkid=2211684
         - name: Conversation summarization
           href: https://go.microsoft.com/fwlink/?linkid=2195178
     - name: SDKs