feat(docs): add DeepCode Plus section to README files

Author: qorzj

README-en.md

@@ -162,6 +162,12 @@ For detailed configuration instructions, see: [docs/notify_en.md](docs/notify_en
 
 No. Deep Code has a built-in fine-grained permission control mechanism that lets you confirm operations before the AI assistant executes shell commands, reads/writes files, accesses the network, and more. You can configure each permission scope's policy — always allow, always ask, or deny — via the `permissions` field in `settings.json`. See [docs/permission.md](docs/permission.md) for details.
 
+## DeepCode Plus
+
+DeepCode Plus aims to provide an all-in-one experience for AI coding and creative work. It offers DeepSeek model subscription plans and additional capabilities such as image understanding, web search, image generation, and video generation. It is entirely optional: you do not need a Plus subscription to use Deep Code.
+
+Homepage: https://www.deepcodeplus.com · https://deepcode.vegamo.cn (Chinese)
+
 ## Contributing
 
 Contributions are welcome! Here's how to get started:

README-zh_CN.md

@@ -161,6 +161,13 @@ Deep Code 支持 MCP（Model Context Protocol），可以连接 GitHub、浏览
 }
 ```
 
+## DeepCode Plus
+
+DeepCode Plus 旨在提供一站式的 AI 编程与创作体验。它提供 DeepSeek 模型订阅套餐，并支持图片理解、联网搜索、图片生成和视频生成等增强功能。它完全可选，使用 Deep Code 并不需要订阅 Plus。
+
+ - 中文版: https://deepcode.vegamo.cn
+ - 国际版: https://www.deepcodeplus.com
+
 ## 贡献
 
 欢迎贡献代码！以下是参与方式：

README.md

@@ -161,6 +161,13 @@ Deep Code 支持 MCP（Model Context Protocol），可以连接 GitHub、浏览
 }
 ```
 
+## DeepCode Plus
+
+DeepCode Plus 旨在提供一站式的 AI 编程与创作体验。它提供 DeepSeek 模型订阅套餐，并支持图片理解、联网搜索、图片生成和视频生成等增强功能。它完全可选，使用 Deep Code 并不需要订阅 Plus。
+
+ - 中文版: https://deepcode.vegamo.cn
+ - 国际版: https://www.deepcodeplus.com
+
 ## 贡献
 
 欢迎贡献代码！以下是参与方式：