readme update

README.md

@@ -130,19 +130,17 @@ $ npm test
 NOTE: Be sure to keep up to date the plugin tests and jshint code quality.
 
 ## Release History
- * 2013-00-00   v1.0.0   Rewrite task on top of [grunt-init-gruntplugin][grunt-init-gruntplugin]
+ * 2013-06-16   v1.0.0   Rewrite task on top of [grunt-init-gruntplugin][grunt-init-gruntplugin]
  * 2013-05-26   v0.4.2   Add support to different service #16
 
 ## Credits
  * [node-smushit][node-smushit]
- * [wrench-js][wrench]
 
 ## License
 
 MIT License
 (c) [Helder Santana](http:https://heldr.com)
 
 [node-smushit]: https://github.com/colorhook/node-smushit
-[wrench]: https://github.com/ryanmcgrath/wrench-js
 [smushit-site]: http:https://www.smushit.com/ysmush.it/
 [grunt-init-gruntplugin]: https://github.com/gruntjs/grunt-init-gruntplugin