Update intro.md

Author: ArcherAZ

articles/ai-services/speech-service/includes/quickstarts/text-to-speech-basics/intro.md

@@ -10,3 +10,6 @@ With Azure AI Speech, you can run an application that synthesizes a human-like v
 
 > [!TIP]
 > You can try text to speech in the [Speech Studio Voice Gallery](https://aka.ms/speechstudio/voicegallery) without signing up or writing any code.
+
+> [!TIP]
+> Try out the [Azure AI Speech Toolkit](https://marketplace.visualstudio.com/items?itemName=ms-azureaispeech.azure-ai-speech-toolkit) to easily build and run samples on Visual Studio Code.