Added link to Mathematica port

Author: davidmerfield

README.md

@@ -1,6 +1,6 @@
 # [Random Color](https://randomcolor.lllllllllllllllll.com)
 
-A tiny script for generating attractive random colors. See the demo for [an explanation](https://randomcolor.lllllllllllllllll.com) and [some samples](https://randomcolor.lllllllllllllllll.com). randomColor has been ported to [C#](https://github.com/nathanpjones/randomColorSharped), [C++](https://github.com/xuboying/randomcolor-cpp), [Go](https://github.com/hansrodtang/randomcolor), [Haskell](http://hackage.haskell.org/package/palette-0.3/docs/Data-Colour-Palette-RandomColor.html), [PHP](https://github.com/mistic100/RandomColor.php), [Python](https://github.com/kevinwuhoo/randomcolor-py), [Swift](https://github.com/onevcat/RandomColorSwift), [Perl6](https://github.com/Xliff/p6-RandomColor), [Objective-C](https://github.com/yageek/randomColor), [Java](https://github.com/lzyzsd/AndroidRandomColor), [R](https://github.com/ronammar/randomcoloR), [Reason](https://github.com/ktrzos/bs-randomColor) and [Rust](https://github.com/elementh/random_color).
+A tiny script for generating attractive random colors. See the demo for [an explanation](https://randomcolor.lllllllllllllllll.com) and [some samples](https://randomcolor.lllllllllllllllll.com). randomColor has been ported to [C#](https://github.com/nathanpjones/randomColorSharped), [C++](https://github.com/xuboying/randomcolor-cpp), [Go](https://github.com/hansrodtang/randomcolor), [Haskell](http://hackage.haskell.org/package/palette-0.3/docs/Data-Colour-Palette-RandomColor.html), [Mathematica](https://github.com/yuluyan/PrettyRandomColor), [PHP](https://github.com/mistic100/RandomColor.php), [Python](https://github.com/kevinwuhoo/randomcolor-py), [Swift](https://github.com/onevcat/RandomColorSwift), [Perl6](https://github.com/Xliff/p6-RandomColor), [Objective-C](https://github.com/yageek/randomColor), [Java](https://github.com/lzyzsd/AndroidRandomColor), [R](https://github.com/ronammar/randomcoloR), [Reason](https://github.com/ktrzos/bs-randomColor) and [Rust](https://github.com/elementh/random_color).
 
 [![Demo](http://i.imgur.com/lOLCqvu.gif)](https://randomcolor.lllllllllllllllll.com)