Update README.md

Author: elect86

README.md

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 # kotlin-unsigned
 
-[![Build Status](https://travis-ci.org/kotlin-graphics/kotlin-unsigned.svg?branch=master)](https://travis-ci.org/kotlin-graphics/kotlin-unsigned) [![license](https://img.shields.io/github/license/mashape/apistatus.svg)](https://github.com/kotlin-graphics/kotlin-unsigned/blob/master/LICENSE) ![](https://reposs.herokuapp.com/?path=kotlin-graphics/kotlin-unsigned) [![Release](https://jitpack.io/v/kotlin-graphics/kotlin-unsigned.svg)](https://jitpack.io/#kotlin-graphics/kotlin-unsigned)
+[![Build Status](https://travis-ci.org/kotlin-graphics/kotlin-unsigned.svg?branch=master)](https://travis-ci.org/kotlin-graphics/kotlin-unsigned) [![license](https://img.shields.io/badge/License-MIT-orange.svg)](https://github.com/kotlin-graphics/kotlin-unsigned/blob/master/LICENSE) ![](https://reposs.herokuapp.com/?path=kotlin-graphics/kotlin-unsigned&color=yellow) [![Release](https://jitpack.io/v/kotlin-graphics/kotlin-unsigned.svg)](https://jitpack.io/#kotlin-graphics/kotlin-unsigned) [![Packagist](http://cranlogs.r-pkg.org/badges/pingr)](https://github.com/kotlin-graphics/kotlin-unsigned) [![Slack Status](http://slack.kotlinlang.org/badge.svg)](http://slack.kotlinlang.org/)
 
 Unsigned operators and boxed types (`Ubyte`, `Uint`, `Ulong` and `Ushort`) for unsigned support.