Update README.md

Author: passwalls

README.md

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 Mark is a high performance API micro framework based on [FastRoute](https://github.com/nikic/FastRoute) and [workerman](https://github.com/walkor/workerman) helps you quickly write APIs with php. It is so simple that the [core codes](https://github.com/passwalls/mark/blob/master/src/App.php) is only about 200 lines.
 
-Probably the fastest PHP API framework in the world. See [the-benchmarker](https://github.com/the-benchmarker/web-frameworks#results).
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 # Install
 It's recommended that you use Composer to install Mark.