Update README.md

SleepyLGod · web-flow · commit f1147eddaad4 · 2023-02-09T10:56:21.000-08:00
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 👨‍🚀 **So keep an eye on our [open source repository](https://github.com/JumboArbitrage), although it's very, very crude and ugly.**
 
-📨 **Contact us at [haodong.lu.me@gmail.com](), [yifeiliang@hust.edu.cn]().**
+📨 **Contact us at [haodong.lu.me@gmail.com](mailto:haodong.lu.me@gmail.com), [yifeiliang@hust.edu.cn](mailto:yifeiliang@hust.edu.cn).**

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`5`	`5`	`👨‍🚀 So keep an eye on our [open source repository](https://github.com/JumboArbitrage), although it's very, very crude and ugly.`
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`7`		`-📨 Contact us at [[email protected]](), [[email protected]]().`
	`7`	`+📨 Contact us at [[email protected]](mailto:[email protected]), [[email protected]](mailto:[email protected]).`