Update toc.yml

Author: sally-baolian

articles/ai-services/speech-service/toc.yml

@@ -316,6 +316,9 @@ items:
         - name: Reading and speaking assessment in AI Studio
           href: pronunciation-assessment-tool.md
           displayName: pronounce, learn language, assess pron
+        - name: AI-powered language learning with pronunciation assessment
+          href: language-learning-with-pronunciation-assessment.md
+          displayName: pronounce, learn language, assess pron, chatting 
     - name: Azure OpenAI speech to speech chat
       href: openai-speech.md
     - name: Meeting transcription