fix github issue

Author: mrbullwinkle

articles/cognitive-services/QnAMaker/How-To/edit-knowledge-base.md

@@ -53,7 +53,7 @@ If you do not have pre-existing content to populate the knowledge base, you can
 
 1. Optionally, add **[metadata](../Quickstarts/add-question-metadata-portal.md#add-metadata-to-filter-the-answers)**. To view metadata, select **View options** in the context menu. Metadata provides filters to the answers that the client application, such as a chat bot, provides.
 
-1. Optionally, add **[follow-up prompts](multiturn-conversation.md)**. Follow-up prompts provide additional conversation paths to the client application to present to the user.
+1. Optionally, add **[follow-up prompts](multiturn.md)**. Follow-up prompts provide additional conversation paths to the client application to present to the user.
 
 1. Select **Save and train** to see predictions including the new QnA pair.
 

articles/cognitive-services/QnAMaker/toc.yml

@@ -80,6 +80,8 @@
   - name: Use Prebuilt API to query over text
     href: How-to/using-prebuilt-api.md
     displayName: prebuilt, query, answer, text, prebuilt api, ingest, no storage, call, response
+  - name: Multiturn conversations
+    href: how-to/multiturn.md
   - name: Get suggested alternate questions via active learning
     href: How-to/improve-knowledge-base.md
     displayName: active learning, suggestion, dialog prompt, train api, feedback loop, autolearn, auto-learn, user setting, service setting, services setting, accept, reject, filter by suggestion, filter active learning, clusterHead, totalAutoSuggestedCount, totalUserSuggestedCount, autoSuggestedCount, userSuggestedCount