Fix bugs

Author: bojunehsu

articles/ai-services/content-understanding/index.yml

@@ -39,15 +39,18 @@ conceptualContent:
           url: concepts/analyzer-templates.md
     - title: Analyzers
       links:
-        - itemType: overview
-          text: Overview
-          url: concepts/analyzers-overview.md
-        - itemType: concept
-          text: Prebuilt analyzers
-          url: concepts/prebuilt-analyzers.md
+        - itemType: quickstart
+          text: Quickstart
+          url: quickstart/use-rest-api.md
         - itemType: concept
           text: "Modes: standard and pro"
           url: concepts/modes-standard-pro.md
+        - itemType: concept
+          text: Prebuilt analyzers
+          url: concepts/prebuilt-analyzers.md
+        - itemType: how-to-guide
+          text: Create a custom analyzer
+          url: tutorial/create-custom-analyzer.md
     - title: Classifiers
       links:
         - itemType: overview

articles/ai-services/content-understanding/toc.yml

@@ -26,7 +26,7 @@ items:
       - name: Glossary
         displayName: glossary, definition, updates, previews
         href: glossary.md
-  - name: "Azure AI Foundry: Content Understanding"
+  - name: "AI Foundry: Content Understanding"
     items:
       - name: Quickstart
         displayName: quickstart, extract, text, images, OCR, optical character recognition
@@ -36,9 +36,6 @@ items:
         href: concepts/analyzer-templates.md
   - name: Analyzers
     items:
-      - name: Overview
-        displayName: content understanding capabilities, document, text, images, video, audio, visual, structured, content, field, extraction
-        href: concepts/analyzers-overview.md
       - name: "Quickstart"
         displayName: quickstart, extract, text, images, OCR, optical character recognition, content filtering, filter
         href: quickstart/use-rest-api.md