update landing page

Author: sdgilley

articles/ai-studio/index.yml

@@ -83,8 +83,8 @@ landingContent:
             url: concepts/deployments-overview.md
       - linkListType: reference
         links:
-          - text: Azure SDK for Python
-            url: /python/api/overview/azure/
+          - text: Azure AI Foundry SDK
+            url: how-to\develop\sdk-overview.md
           - text: Azure OpenAI Service Reference
             url: ../ai-services/openai/reference.md