Update README.md

Issue #85

Author: danofa

polymer_mini_samples/README.md

@@ -3,7 +3,7 @@
 This directory contains short Polymer Dart samples. Many of the samples are 
 ports of polymer.js samples that are used in the docs of polymer-project.org.
 The original JS samples can be found at 
-[https://github.com/Polymer/docs/tree/master/samples](http://polymer.github.io).
+[https://github.com/Polymer/docs/tree/master/samples](https://github.com/Polymer/docs/tree/master/samples).
 
 The original AUTHORS, CONTRIBUTORS, LICENSE and PATENTS files for polymer can 
 be found at [http://polymer.github.io](http://polymer.github.io)/.