Use this really great looking new Jenkins logo

README.md

@@ -20,7 +20,7 @@ News and Website
 ----------------
 All about Jenkins CI can be found on our [website]. Follow us an Twitter @[jenkinsci].
 
-[ButlerImage]: http://jenkins-ci.org/images/butler.png
+[ButlerImage]: http://jenkins-ci.org/sites/default/files/jenkins_logo.png
 [MIT License]: https://github.com/jenkinsci/jenkins/raw/master/LICENSE.txt
 [Mirrors]: http://mirrors.jenkins-ci.org
 [GitHub]: https://github.com/jenkinsci/jenkins