docs: add Getting Help section with Azure AI Foundry Discord and Forum links (#120)

* Initial plan

* Add Getting Help section with Azure AI Foundry Discord and Forum links

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>

Author: Copilot

README.md

@@ -6,7 +6,7 @@
 # Serverless AI Chat with RAG using LangChain.js
 
 [![Open project in GitHub Codespaces](https://img.shields.io/badge/Codespaces-Open-blue?style=flat-square&logo=github)](https://codespaces.new/Azure-Samples/serverless-chat-langchainjs?hide_repo_select=true&ref=main&quickstart=true)
-[![Join Azure AI Community Discord](https://img.shields.io/badge/Discord-Azure_AI_Community-blue?style=flat-square&logo=discord&color=5865f2&logoColor=fff)](https://discord.gg/kzRShWzttr)
+[![Join Azure AI Foundry Discord](https://img.shields.io/badge/Discord-Azure_AI_Community-blue?style=flat-square&logo=discord&color=5865f2&logoColor=fff)](https://aka.ms/foundry/discord)
 [![Official Learn documentation](https://img.shields.io/badge/Documentation-00a3ee?style=flat-square)](https://learn.microsoft.com/azure/developer/javascript/ai/get-started-app-chat-template-langchainjs)
 [![Watch to learn about RAG and this sample on YouTube](https://img.shields.io/badge/YouTube-d95652.svg?style=flat-square&logo=youtube)](https://www.youtube.com/watch?v=xkFOmx5yxIA&list=PLlrxD0HtieHi5ZpsHULPLxm839IrhmeDk&index=4)
 [![dev.to blog post walkthrough](https://img.shields.io/badge/Blog%20post-black?style=flat-square&logo=dev.to)](https://dev.to/azure/build-a-serverless-chatgpt-with-rag-using-langchainjs-3487)
@@ -247,6 +247,16 @@ If you have any issue when running or deploying this sample, please check the [t
 
 For more detailed guidance on how to use this sample, please refer to the [tutorial](./docs/tutorial/01-introduction.md).
 
+## Getting Help
+
+If you get stuck or have any questions about building AI apps, join:
+
+[![Azure AI Foundry Discord](https://img.shields.io/badge/Discord-Azure_AI_Foundry_Community_Discord-blue?style=for-the-badge&logo=discord&color=5865f2&logoColor=fff)](https://aka.ms/foundry/discord)
+
+If you have product feedback or errors while building visit:
+
+[![Azure AI Foundry Developer Forum](https://img.shields.io/badge/GitHub-Azure_AI_Foundry_Developer_Forum-blue?style=for-the-badge&logo=github&color=000000&logoColor=fff)](https://aka.ms/foundry/forum)
+
 ## Contributing
 
 This project welcomes contributions and suggestions. Most contributions require you to agree to a