feat: announce Discord and WeChat (#367)

* upload gitter and wechat links

* update badge

* update gitter to discord

README.md

@@ -18,11 +18,14 @@
 [![pre-commit](https://img.shields.io/badge/pre--commit-enabled-brightgreen?logo=pre-commit)](https://github.com/pre-commit/pre-commit)
 [![Checked with mypy](https://www.mypy-lang.org/static/mypy_badge.svg)](http://mypy-lang.org/)
 [![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json)](https://github.com/astral-sh/ruff)
+[![Chat](https://img.shields.io/badge/chat-discord-blue)](https://discord.gg/ybQ97B6Jjy)
 [![Readthedocs Preview](https://github.com/microsoft/RD-Agent/actions/workflows/readthedocs-preview.yml/badge.svg)](https://github.com/microsoft/RD-Agent/actions/workflows/readthedocs-preview.yml) <!-- this badge is too long, please place it in the last one to make it pretty --> 
 
 # 📰 News
 | 🗞️ News        | 📝 Description                 |
 | --            | ------                        |
+| Official WeChat group release  | We created a WeChat group, welcome to join! (🗪[QR Code](docs/WeChat_QR_code.jpg)) |
+| Official Discord release  | We launch our first chatting channel in Discord (🗪[![Chat](https://img.shields.io/badge/chat-discord-blue)](https://discord.gg/ybQ97B6Jjy)) |
 | First release | **RDAgent** is released on GitHub |