Update toc.yml

Author: eric-urban

articles/ai-studio/toc.yml

@@ -73,7 +73,7 @@ items:
       - name: Use your image data with Azure OpenAI
         href: how-to/data-image-add.md
         displayName: vision, gpt, turbo
-    - name: Azure Speech
+    - name: Azure AI Speech
       items:
       - name: Real-time speech to text
         href: ../ai-services/speech-service/get-started-speech-to-text.md?context=/azure/ai-studio/context/context