updated contributors with @amadio

CONTRIBUTORS.md

@@ -57,6 +57,7 @@
 
 ### Redistribution & Installation
 
+- Guilherme Amadio - Linux
 - Helio Chissini de Castro - Linux
 - Michael Hex - Windows
 - Caleb Maclennan - Linux, OS X

README.md

@@ -1,5 +1,5 @@
 
-# Hack  [![Contributors](https://img.shields.io/badge/contributors-103-orange.svg?style=flat)] (https://github.com/chrissimpkins/Hack/blob/master/CONTRIBUTORS.md)
+# Hack  [![Contributors](https://img.shields.io/badge/contributors-104-orange.svg?style=flat)] (https://github.com/chrissimpkins/Hack/blob/master/CONTRIBUTORS.md)
 ### A typeface designed for source code
 
 <a href="https://sourcefoundry.org/hack/"><img src="img/hack-specimen-2.png" alt="Hack-a monospaced sans-serif font for source code" width="728"></a>