Align English README with Chinese copy

Author: ref42

README.en.md

@@ -68,9 +68,43 @@ Use **Clean cache** in Settings to remove downloaded audio from disk. CAPS stops
 | Symphonia | Local music metadata, cover art, and duration |
 | Sysinfo | CPU, memory, and network stats |
 
-## Author
+## For Users
 
-ref42
+- Hold Shift + left mouse button to drag the capsule to a position you like.
+- Hover over the capsule to expand it and access settings.
+- Right-click the capsule to exit `CAPS`.
+- Mode notes in Settings:
+  - Normal mode: when no song is playing, CAPS shows CPU usage, memory usage, upload speed, and download speed. After you pick a song from the queue, it starts playback and shows lyrics for NetEase tracks plus the spectrum.
+  - Silent mode: only shows CPU usage, memory usage, upload speed, and download speed.
+  - Quiet mode: hides song title, lyrics, and related music details, and only shows CPU usage, memory usage, upload speed, and download speed. It becomes a desktop widget for low-profile use.
+
+## For Developers
+
+- Issues are welcome for bugs, feedback, and feature requests.
+- For PRs, it is better to open an issue first and discuss the idea before implementation, so effort is not wasted.
+- Everyone has different ideas, but no matter how CAPS grows, please keep memory usage under 30 MB. Normal usage is currently around 5-25 MB.
+
+## References
+
+- [Apple animation design](https://developer.apple.com/design/human-interface-guidelines/motion)
+- [Apple Dynamic Island](https://developer.apple.com/documentation/widgetkit/dynamicisland)
+- [Apple motion/UI reference](https://developer.apple.com/design/human-interface-guidelines/live-activities?pubDate=20250703&utm_source=openai)
+- [MDN HTTP range requests](https://developer.mozilla.org/en-US/docs/Web/HTTP/Guides/Range_requests)
+
+## Thanks
+
+- Thanks to all open-source project maintainers.
+
+## Donate
+
+- If you think this project is useful, you can consider donating. Thank you.
+- A donation note is recommended. If CAPS gives you a bad experience, refunds are available.
+- Thank you for your support.
+
+<div align="center">
+WeChat / Alipay<br>
+<img src="qr/pay.jpg" width="200" alt="Payment QR code">
+</div>
 
 ## License
 

README.md

@@ -68,9 +68,40 @@ Bilibili 和 YouTube 标签页会严格校验对应来源。YouTube 链接不会
 | Symphonia | 本地音乐元数据、封面和时长 |
 | Sysinfo | CPU、内存和网络状态 |
 
-## 作者
-
-ref42
+## 写给普通用户
+
+- Shift+鼠标左键，按住拖动胶囊，可以将胶囊放在你喜欢的位置。
+- 鼠标悬停，可以展开胶囊，进行设置。
+- 鼠标在胶囊上右键可以退出`CAPS`。
+- 设置里的模式选择说明：
+  - 普通模式，如果未播放任何歌曲，则显示CPU占用，内存占用，上行速度，下行速度；点击播放列表选择了歌曲之后则会开始播放歌曲，并且显示歌词（某易歌曲），频谱。
+  - 静默模式，只显示显示CPU占用，内存占用，上行速度，下行速度。
+  - 安静模式，隐藏歌曲的名称和歌词等信息，只显示CPU占用，内存占用，上行速度，下行速度。此时退化为桌面挂件（推荐摸鱼使用）。
+
+## 写给开发者
+
+- 欢迎给我提issue，反馈bug或者添加新功能。
+- 若是想要进行pr，最好是先在issue里提出，讨论之后再开始实现，避免浪费精力。
+- 每个人都有自己的想法，但是不管如何拓展，都不要让CAPS吃掉超过30MB的内存，现在的正常占用在5~25MB左右。
+
+## 参考
+- [apple animation design](https://developer.apple.com/design/human-interface-guidelines/motion)
+- [apple dynamic island](https://developer.apple.com/documentation/widgetkit/dynamicisland)
+- [apple motion/ui ref](https://developer.apple.com/design/human-interface-guidelines/live-activities?pubDate=20250703&utm_source=openai)
+- [mdn http requests](https://developer.mozilla.org/en-US/docs/Web/HTTP/Guides/Range_requests)
+
+## 致谢
+- 所有开源项目维护者。
+
+## 打赏
+
+- 如果你觉得这个项目还不错，可以考虑给我打赏。感谢~
+- 推荐添加打赏备注，如果CAPS让您体验很糟糕，可以进行退款。
+- 感谢支持。
+<div align="center">
+微信/支付宝<br>
+<img src="qr/pay.jpg" width="200" alt="收款码">
+</div>
 
 ## 许可证