Added me as a contribuitor.

ryanfox1985 · ryanfox1985 · commit 036ee58bbab5 · 2016-01-25T10:36:29.000+01:00
diff --git a/AUTHORS.rdoc b/AUTHORS.rdoc
@@ -29,5 +29,6 @@ With help from:
 - Paul Alexander
 - Dmitry Lihachev
 - qichunren
+- Guillermo Guerrero - http://github.com/ryanfox1985
 
 and many others that I may have forgotten to add.
