Update README.md

Author: Zie619

README.md

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 A professionally organized collection of **2,053 n8n workflows** with a lightning-fast documentation system that provides instant search, analysis, and browsing capabilities.
 
 > **⚠️ IMPORTANT NOTICE (Aug 14, 2025):** Repository history has been rewritten due to DMCA compliance. If you have a fork or local clone, please see [Issue #X](https://github.com/Zie619/n8n-workflows/issues) for instructions on syncing your copy.
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+## Support My Work
+
+[![Buy Me a Coffee](https://img.shields.io/badge/-Buy%20Me%20a%20Coffee-ffdd00?logo=buy-me-a-coffee&logoColor=black&style=flat)](https://www.buymeacoffee.com/zie619)
+
+If you'd like to say thanks, consider buying me a coffee—your support helps me keep improving this project!
 
 ## 🚀 **NEW: High-Performance Documentation System**
 
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 [中文](./README_ZH.md)
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