Update README.md

Author: davidmerfield

README.md

@@ -9,7 +9,7 @@ randomColor is available [minified on cdnjs](http://cdnjs.com/libraries/randomco
 ```javascript
 npm install randomcolor
 ```
-randomColor has been ported to [C#](https://github.com/nathanpjones/randomColorSharped), [Go](https://github.com/hansrodtang/randomcolor), [PHP](https://github.com/mistic100/RandomColor.php), [Python](https://github.com/kevinwuhoo/randomcolor-py), [Swift](https://github.com/onevcat/RandomColorSwift), [Objective-C](https://github.com/yageek/randomColor), [Java](https://github.com/lzyzsd/AndroidRandomColor) and 
+randomColor has been ported to [C#](https://github.com/nathanpjones/randomColorSharped), [C++](https://github.com/xuboying/randomcolor-cpp), [Go](https://github.com/hansrodtang/randomcolor), [PHP](https://github.com/mistic100/RandomColor.php), [Python](https://github.com/kevinwuhoo/randomcolor-py), [Swift](https://github.com/onevcat/RandomColorSwift), [Objective-C](https://github.com/yageek/randomColor), [Java](https://github.com/lzyzsd/AndroidRandomColor) and 
 [R](https://github.com/ronammar/randomcoloR).
 
 ### Options