Update README.md

RickWong · web-flow · commit f25b971dca05 · 2017-06-25T12:52:32.000+02:00
diff --git a/README.md b/README.md
@@ -132,6 +132,7 @@ on Twitter.
 ### Contributors
 
 - [Danilo Moret](https://github.com/moret)
+- [Will Butler](https://github.com/willbutler)
 
 ## License
 
