Update getting-started.html

getting-started.html

@@ -44,7 +44,7 @@ base_url: "../"
     <p>The folks over at <a href="https://www.netdna.com/">NetDNA</a> have graciously provided CDN support for Bootstrap's CSS and JavaScript. To use, swap your local instances for the <a href="http://www.bootstrapcdn.com/">Bootstrap CDN</a> links listed below.</p>
 {% highlight html linenos %}
 <!-- Latest compiled and minified CSS -->
-<link href="{{ site.cdn_css }}">
+<link rel="stylesheet" href="{{ site.cdn_css }}">
 
 <!-- Latest compiled and minified JavaScript -->
 <script src="{{ site.cdn_js }}"></script>