Update README.md

README.md

@@ -11,7 +11,7 @@
 [![License](https://img.shields.io/github/license/AcalaNetwork/Acala?color=green)](https://github.com/AcalaNetwork/Acala/blob/master/LICENSE)
  <br />
 [![Twitter URL](https://img.shields.io/twitter/url?style=social&url=https%3A%2F%2Ftwitter.com%2FAcalaNetwork)](https://twitter.com/AcalaNetwork)
-[![Discord](https://img.shields.io/badge/Discord-gray?logo=discord)](https://discord.gg/vdbFVCH)
+[![Discord](https://img.shields.io/badge/Discord-gray?logo=discord)](https://www.acala.gg/)
 [![Telegram](https://img.shields.io/badge/Telegram-gray?logo=telegram)](https://t.me/AcalaOfficial)
 [![Discourse](https://img.shields.io/badge/Forum-gray?logo=discourse)](https://acala.discourse.group/)
 [![Medium](https://img.shields.io/badge/Medium-gray?logo=medium)](https://medium.com/acalanetwork)