Update README.md

Author: Hidden-Node

README.md

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 # Chain Proxy Builder
 
-[GitHub Repository](https://github.com/Hidden-Node/proxy-builder)
 
 A powerful, standalone web application to chain two proxy configurations into a single **Xray** or **Sing-box** JSON configuration. This tool is specifically designed to help users combine multiple proxy layers for enhanced connection stability and fixed IP masking.
 
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 Built with ❤️ for the privacy community.
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