Minor Updates … (#13)

* Update contributors in README.md

* Update CircleCI to use Node 6.10

Author: sbstjn

README.md

@@ -48,6 +48,8 @@ Feel free to use the code, it's released using the [MIT license](https://github.
 
 - [Oleksii Zeleniuk](https://github.com/alexzelenuyk)
 - [Sebastian Müller](https://github.com/sbstjn)
+- [Robin Drexler](https://github.com/robin-drexler)
+- [Samuel Marks](https://github.com/sammarks)
 
 ## Contribution
 

circle.yml

@@ -1,6 +1,6 @@
 machine:
   node:
-    version: 4.5.0
+    version: 6.10.0
 
 dependencies:
   override: