update toc

Author: laujan

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

@@ -28,12 +28,12 @@ items:
         href: glossary.md
   - name: Quickstarts
     items:
-    - name: Azure AI Foundry portal
+    - name: Try Azure AI Foundry portal
       items:
-        - name: Try Content Understanding with a single file"
+        - name: Use Content Understanding with a single file"
           displayName: quickstart, extract, text, images, OCR, optical character recognition, foundry, standard, mode
           href: quickstart/use-ai-foundry.md
-        - name: Try Content Understanding with multiple files"
+        - name: Use Content Understanding with multiple files"
           displayName: quickstart, extract, text, images, OCR, optical character recognition, foundry, pro, mode
           href: quickstart/use-ai-foundry-pro-mode.md
     - name: Try Content Understanding REST API