Deleted and redirected page, improved link to API docs

Author: jboback

.openpublishing.redirection.json

@@ -44347,6 +44347,11 @@
       "source_path_from_root": "/articles/governance/blueprints/samples/pci-dss-3.2.1/index.md",
       "redirect_url": "/azure/governance/policy/samples",
       "redirect_document_id": false
+    },
+    {
+      "source_path_from_root": "/articles/cognitive-services/QnAMaker/custom-question-answering.md",
+      "redirect_url": "/azure/cognitive-services/language-service/question-answering/overview",
+      "redirect_document_id": false
     }
   ]
 }

articles/cognitive-services/QnAMaker/custom-question-answering.md

@@ -10,8 +10,6 @@
     href: https://aka.ms/qnamaker-pricing
   - name: What's new
     href: whats-new.md
-  - name: Custom question answering (preview)
-    href: custom-question-answering.md
   - name: Migrate to custom question answering
     href: ../language-service/question-answering/how-to/migrate-qnamaker.md?context=/azure/cognitive-services/qnamaker/context/context
 - name: Quickstarts

articles/cognitive-services/QnAMaker/toc.yml

@@ -24,7 +24,7 @@ Resource level settings such as Role-based access control (RBAC) are not migrate
 
 ## Steps to migrate SDKs
 
-This [SDK Migration Guide](https://github.com/Azure/azure-sdk-for-net/blob/Azure.AI.Language.QuestionAnswering_1.1.0-beta.1/sdk/cognitivelanguage/Azure.AI.Language.QuestionAnswering/MigrationGuide.md) is intended to assist in the migration to the new Question Answering client library, Azure.AI.Language.QuestionAnswering, from the old one, Microsoft.Azure.CognitiveServices.Knowledge.QnAMaker. It will focus on side-by-side comparisons for similar operations between the two packages.
+This [SDK Migration Guide](https://github.com/Azure/azure-sdk-for-net/blob/Azure.AI.Language.QuestionAnswering_1.1.0-beta.1/sdk/cognitivelanguage/Azure.AI.Language.QuestionAnswering/MigrationGuide.md) is intended to assist in the migration to the new Question Answering client library, [Azure.AI.Language.QuestionAnswering](https://www.nuget.org/packages/Azure.AI.Language.QuestionAnswering), from the old one, [Microsoft.Azure.CognitiveServices.Knowledge.QnAMaker](https://www.nuget.org/packages/Microsoft.Azure.CognitiveServices.Knowledge.QnAMaker). It will focus on side-by-side comparisons for similar operations between the two packages.
 
 ## Steps to migrate knowledge bases