fix readme

Author: joelamouche

README.md

@@ -152,7 +152,7 @@ event BadgeCreated(bytes32 indexed name, bytes32 description, address indexed cr
 
 ## Contributing
 
-This is a community-driven project. Join our [Discord](https://discord.gg/pg4UgaTr) to discuss features, propose changes, and contribute to the codebase.
+This is a community-driven project. Join our [Discord](https://discord.gg/axCqT23Xhj) to discuss features, propose changes, and contribute to the codebase.
 
 See detailed steps in [CONTRIBUTION.md](CONTRIBUTION.md).