doc: update fansworld-claudio username on README

Updating collaborator username: fansworld-claudio
changed to claudiorodriguez

PR-URL: https://github.com/nodejs/node/pull/5680
Reviewed-By: Rod Vagg <rod@vagg.org>
Reviewed-By: Johan Bergström <bugs@bergstroem.nu>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>

README.md

@@ -162,8 +162,8 @@ information about the governance of the Node.js project, see
 * [benjamingr](https://github.com/benjamingr) - **Benjamin Gruenbaum** <benjamingr@gmail.com>
 * [brendanashworth](https://github.com/brendanashworth) - **Brendan Ashworth** <brendan.ashworth@me.com>
 * [calvinmetcalf](https://github.com/calvinmetcalf) - **Calvin Metcalf** <calvin.metcalf@gmail.com>
+* [claudiorodriguez](https://github.com/claudiorodriguez) - **Claudio Rodriguez** <cjrodr@yahoo.com>
 * [domenic](https://github.com/domenic) - **Domenic Denicola** <d@domenic.me>
-* [fansworld-claudio](https://github.com/fansworld-claudio) - **Claudio Rodriguez** <cjrodr@yahoo.com>
 * [geek](https://github.com/geek) - **Wyatt Preul** <wpreul@gmail.com>
 * [iarna](https://github.com/iarna) - **Rebecca Turner** <me@re-becca.org>
 * [isaacs](https://github.com/isaacs) - **Isaac Z. Schlueter** <i@izs.me>