doc: add feedback document.

feedback.md

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+<p align="right">
+  <a href="./feedback.zh.md">中文</a>
+</p>
+<!--rehype:style=float: right; bottom: -36px; position: relative;-->
+
+Feedback & Support
+===
+
+This tool makes it easy to set folder colors and add small icons, enhancing your file management efficiency.  
+
+Choose from over 5,000 diverse symbol icons for a unique touch, and select from more than ten preset vibrant colors or customize your own color scheme to suit your preferences. Personalize your folders and documents with distinctive identifiers, transforming the mundane file management experience into a visually rich one.  
+
+Your feedback and support are invaluable! If you encounter any issues, have questions, or want to suggest new features, please don't hesitate to reach out. Your input helps improve this tool and ensures it provides the best possible experience.  
+
+You can contact me through the app or by emailing **[email protected]**. I am committed to assisting you and ensuring a smooth and enjoyable experience. Thank you for choosing this tool!  
+
+### Contact Information  
+
+If you need support or encounter any issues while using the application, feel free to reach out via the following channels:  
+
+- [**Email Support**: [email protected]](mailto:[email protected])  
+- [**Social Media**: Twitter/x @jaywcjlove](https://twitter.com/jaywcjlove)  
+- [**GitHub Issue**](https://github.com/jaywcjlove/IconizeFolder/issues/new/choose)  
+
+I will respond to your messages as quickly as possible. Thank you for your support!

feedback.zh.md

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+<p align="right">
+  <a href="./feedback.md">English</a>
+</p>
+<!--rehype:style=float: right; bottom: -36px; position: relative;-->
+
+反馈与支持
+===
+
+这个工具可以轻松设置文件夹颜色并添加小图标，帮助提升文件管理的效率。  
+
+从超过 5000 种多样的符号图标中挑选，增添独特风格。你还可以选择十多种预设的鲜艳颜色，或自定义自己的配色方案，满足个性化需求。让你的文件夹和文档拥有独特标识，将单调的文件管理变成充满视觉享受的体验。  
+
+你的反馈和支持非常重要！如果你遇到任何问题、有疑问，或想提出新功能建议，请随时联系我们。你的意见将帮助我们改进这个工具，确保为你提供最佳使用体验。  
+
+你可以通过应用内或发送邮件至 **[email protected]** 联系我们。我致力于为你提供支持，确保你拥有流畅、愉快的使用体验。感谢你选择这个工具！  
+
+### 联系方式  
+
+如果你在使用过程中需要支持或遇到问题，可以通过以下渠道联系我们：  
+
+- [**邮件支持**: [email protected]](mailto:[email protected])  
+- [**社交媒体**: Twitter/x @jaywcjlove](https://twitter.com/jaywcjlove)  
+- [**GitHub 问题反馈**](https://github.com/jaywcjlove/IconizeFolder/issues/new/choose)  
+
+我会尽快回复你的消息。感谢你对本工具的支持！