Update toc.yml

Author: niels9001

hub/apps/toc.yml

@@ -32,16 +32,8 @@ items:
           href: develop/index.md
         - name: Accessibility
           href: develop/accessibility.md
-        - name: AI and machine learning ↗
-          items: 
-            - name: Windows AI >>
-              href: /windows/ai/
-            - name: Add OpenAI chat completions to your WinUI 3 desktop app
-              href: how-tos/chatgpt-openai-winui3.md
-            - name: Add DALL-E image generation to your WinUI 3 desktop app
-              href: how-tos/dall-e-winui3.md
-            - name: Streamline your WinUI 3 / Windows App SDK development workflow with GitHub Copilot Chat
-              href: how-tos/copilot-chat-winui3.md
+        - name: AI and machine learning >>
+          href: /windows/ai/   
         - name: App lifecycle and system services
           items: 
           - name: App lifecycle