Added myself as contributor as per the pull request rules.

Author: AmerigoM

.github/CONTRIBUTORS.md

@@ -6,6 +6,7 @@ I would like to give a special thanks to all of the people below who have contri
 
 - [Jos Kuijpers](https://github.com/joskuijpers)
 - [Dave Abrahams](https://github.com/dabrahams)
+- [Amerigo Mancino](https://github.com/AmerigoM)
 
 ## I would like to join this list! How can I help the project?