doc: change the info to the same as in gitconfig

PR-URL: #2000
Reviewed-By: Yosuke Furukawa <yosuke.furukawa@gmail.com>
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Johan Bergström <bugs@bergstroem.nu>

Author: tellnes

README.md

@@ -314,7 +314,7 @@ information about the governance of the io.js project, see
 * **Sam Roberts** <vieuxtech@gmail.com> ([@sam-github](https://github.com/sam-github))
 * **Wyatt Preul** <wpreul@gmail.com> ([@geek](https://github.com/geek))
 * **Brian White** <mscdex@mscdex.net> ([@mscdex](https://github.com/mscdex))
-* **Christian Vaagland Tellnes** <christian@tellnes.com> ([@tellnes](https://github.com/tellnes))
+* **Christian Tellnes** <christian@tellnes.no> ([@tellnes](https://github.com/tellnes))
 * **Robert Kowalski** <rok@kowalski.gd> ([@robertkowalski](https://github.com/robertkowalski))
 * **Julian Duque** <julianduquej@gmail.com> ([@julianduque](https://github.com/julianduque))
 * **Johan Bergström** <bugs@bergstroem.nu> ([@jbergstroem](https://github.com/jbergstroem))