Add mailing list subscription instructions.

Fix #77

Author: xuhdev

index.html

@@ -178,7 +178,7 @@ <h2>Contributing to EditorConfig</h2>
   <section id="feedback">
     <h3>Give us your feedback</h3>
 
-    <p>This project is greatly in need of feedback from other developers.  We want to hear ideas about how to make this project better.  Please use the <a href="http://groups.google.com/group/editorconfig">mailing list</a> to send an email to the EditorConfig team and use the <a href="https://github.com/editorconfig/editorconfig/issues">issue tracker</a> to submit bugs (but please take a look at the <a href="https://github.com/editorconfig/editorconfig/wiki/FAQ">FAQ</a> first).  Also feel free to <a href="https://twitter.com/#!/EditorConfig">tweet at us</a>.</p>
+    <p>This project is greatly in need of feedback from other developers.  We want to hear ideas about how to make this project better.  Please use the <a href="http://groups.google.com/group/editorconfig">mailing list</a> to send an email to the EditorConfig team (subscribe by shooting an email to <a href="mailto:[email protected]">[email protected]</a>) and use the <a href="https://github.com/editorconfig/editorconfig/issues">issue tracker</a> to submit bugs (but please take a look at the <a href="https://github.com/editorconfig/editorconfig/wiki/FAQ">FAQ</a> first).  Also feel free to <a href="https://twitter.com/#!/EditorConfig">tweet at us</a>.</p>
   </section>
 
   <section id="create-a-plugin">