fix(readme): update Discord link to valid invite URL

Author: 666ghj

README-EN.md

@@ -16,7 +16,7 @@
 [![Docker](https://img.shields.io/badge/Docker-Build-2496ED?style=flat-square&logo=docker&logoColor=white)](https://hub.docker.com/)
 [![Ask DeepWiki](https://deepwiki.com/badge.svg)](https://deepwiki.com/666ghj/MiroFish)
 
-[![Discord](https://img.shields.io/badge/Discord-Join-5865F2?style=flat-square&logo=discord&logoColor=white)](https://discord.com/channels/1469200078932545606/1469201282077163739)
+[![Discord](https://img.shields.io/badge/Discord-Join-5865F2?style=flat-square&logo=discord&logoColor=white)](http://discord.gg/ePf5aPaHnA)
 [![X](https://img.shields.io/badge/X-Follow-000000?style=flat-square&logo=x&logoColor=white)](https://x.com/mirofish_ai)
 [![Instagram](https://img.shields.io/badge/Instagram-Follow-E4405F?style=flat-square&logo=instagram&logoColor=white)](https://www.instagram.com/mirofish_ai/)
 

README.md

@@ -16,7 +16,7 @@
 [![Docker](https://img.shields.io/badge/Docker-Build-2496ED?style=flat-square&logo=docker&logoColor=white)](https://hub.docker.com/)
 [![Ask DeepWiki](https://deepwiki.com/badge.svg)](https://deepwiki.com/666ghj/MiroFish)
 
-[![Discord](https://img.shields.io/badge/Discord-Join-5865F2?style=flat-square&logo=discord&logoColor=white)](https://discord.com/channels/1469200078932545606/1469201282077163739)
+[![Discord](https://img.shields.io/badge/Discord-Join-5865F2?style=flat-square&logo=discord&logoColor=white)](http://discord.gg/ePf5aPaHnA)
 [![X](https://img.shields.io/badge/X-Follow-000000?style=flat-square&logo=x&logoColor=white)](https://x.com/mirofish_ai)
 [![Instagram](https://img.shields.io/badge/Instagram-Follow-E4405F?style=flat-square&logo=instagram&logoColor=white)](https://www.instagram.com/mirofish_ai/)