feat: 添加 discord 群

Author: claude-code-best

README.md

@@ -6,6 +6,7 @@
 [![GitHub License](https://img.shields.io/github/license/claude-code-best/claude-code?style=flat-square)](https://github.com/claude-code-best/claude-code/blob/main/LICENSE)
 [![Last Commit](https://img.shields.io/github/last-commit/claude-code-best/claude-code?style=flat-square&color=blue)](https://github.com/claude-code-best/claude-code/commits/main)
 [![Bun](https://img.shields.io/badge/runtime-Bun-black?style=flat-square&logo=bun)](https://bun.sh/)
+[![Discord](https://img.shields.io/badge/Discord-Join-5865F2?style=flat-square&logo=discord)](https://discord.gg/qZU6zS7Q)
 
 > Which Claude do you like? The open source one is the best.