Add Digg to sites using normalize.css

Includes updating normalize.css to the latest version from 'master'.

Author: necolas

index.html

@@ -59,9 +59,10 @@ <h2>Who uses it?</h2>
                 <a href="http://twitter.github.com/bootstrap/">Twitter Bootstrap</a>,
                 <a href="http://html5boilerplate.com/">HTML5 Boilerplate</a>,
                 <a href="https://www.rdio.com/">Rdio</a>,
+                <a href="http://digg.com/">Digg</a>,
                 <a href="https://www.gov.uk/">GOV.UK</a>,
                 <a href="http://informationarchitects.net/">iA</a>,
-                <a href="http://css-tricks.com/">CSS Tricks</a></li>,
+                <a href="http://css-tricks.com/">CSS Tricks</a>,
                 and many others.
             </p>
 
@@ -82,7 +83,7 @@ <h2>Acknowledgements</h2>
         <script>
             window._gaq=[['_setAccount','UA-7489188-1'],['_trackPageview']];
             (function(doc, script) {
-                var js, 
+                var js,
                     fjs = doc.getElementsByTagName(script)[0],
                     frag = doc.createDocumentFragment(),
                     add = function(url, id) {