docs: readme add discord and lark link (#7171)

Author: zllkjc

README.md

@@ -68,6 +68,11 @@ Thanks to the following friends for their contributions to Modern.js:
   <img src="https://opencollective.com/modernjs/contributors.svg?width=890&button=false" alt="contributors">
 </a>
 
+## Community
+
+Come and chat with us on [Discord](https://discord.gg/qPCqYg38De)! The Modern.js team and users are active there, and we're always looking for contributions.
+
+
 ## Credits
 
 Some implementations of Modern.js are modified from existing projects, such as [create-react-app](https://github.com/facebook/create-react-app), [remix](https://github.com/remix-run/remix), [jest](https://github.com/facebook/jest) and [bundle-require](https://github.com/egoist/bundle-require). Thanks for them.

README.zh-CN.md

@@ -68,6 +68,12 @@ Modern.js 提供了一系列开箱即用的示例项目，你可以在 [modern-j
   <img src="https://opencollective.com/modernjs/contributors.svg?width=890&button=false" alt="contributors">
 </a>
 
+## 社区
+
+欢迎加入我们的 [Discord](https://discord.gg/qPCqYg38De) 交流频道！Modern.js 团队和用户都在那里活跃，并且我们一直期待着各种贡献。
+
+你也可以加入[飞书群](https://applink.larkoffice.com/client/chat/chatter/add_by_link?link_token=d21hc667-9403-48a9-ba32-bc1440a80279) 与大家一起交流。
+
 ## Credits
 
 Modern.js 中的部分代码是参考社区中的其他项目实现的，比如 [create-react-app](https://github.com/facebook/create-react-app)，[remix](https://github.com/remix-run/remix)，[jest](https://github.com/facebook/jest) 和 [bundle-require](https://github.com/egoist/bundle-require) 等，感谢这些项目：

packages/document/main-doc/rspress.config.ts

@@ -62,6 +62,11 @@ export default defineConfig({
       text: 'Edit this page on GitHub',
     },
     socialLinks: [
+      {
+        icon: 'discord',
+        mode: 'link',
+        content: 'https://discord.gg/qPCqYg38De',
+      },
       {
         icon: 'github',
         mode: 'link',