Update index.html

Author: lipis

index.html

@@ -35,7 +35,7 @@
         <h1>Social Buttons for Bootstrap</h1>
         <p>
           Social Sign-In Buttons made in pure CSS based on
-          <a href="http://twitter.github.io/bootstrap/">Bootstrap</a> and
+          <a href="http://getbootstrap.com/">Bootstrap</a> and
           <a href="http://fortawesome.github.io/Font-Awesome/">Font Awesome</a>!
         </p>
         <a href="https://github.com/lipis/bootstrap-social" class="btn btn-outline btn-lg" onclick="_gaq.push(['_trackEvent', 'exit', 'header', 'GitHub']);"><span class="fa fa-github"></span> View on GitHub</a>