Change URL

Author: tenntenn

README.md

@@ -6,7 +6,7 @@ Gopher 3D model
 <img width="50%" src="https://raw.github.com/golang-samples/gopher-3d/master/gopher3d.png"/>
 
 The Go gopher was designed by Renee French. (http://reneefrench.blogspot.com/)
-The gopher 3D model was made by Takuya Ueda (http://u.hinoichi.net).
+The gopher 3D model was made by Takuya Ueda (https://twitter.com/tenntenn).
 Licensed under the Creative Commons 3.0 Attributions license.
 
 <a rel="license" href="http://creativecommons.org/licenses/by/3.0/deed.ja">