Link to code so it is easy to find.

source/index.html

@@ -17,7 +17,7 @@ extra_css:
           <p class="text-center">
           <!-- mobile ctas -->
          <div class="landing-ctas hidden-sm hidden-md hidden-lg">
-            <a href="https://about.gitlab.com/downloads/" class="ce" onClick="_gaq.push(['_trackEvent', 'Landing page', 'call to action', 'Download']);">Download and install the open source GitLab CE in 2 minutes</a>
+            <a href="https://about.gitlab.com/downloads/" class="ce" onClick="_gaq.push(['_trackEvent', 'Landing page', 'call to action', 'Download']);">Download and install the <a href="https://gitlab.com/gitlab-org/gitlab-ce/tree/master">open source</a> GitLab CE in 2 minutes</a>
             <br>
             <a href="https://about.gitlab.com/pricing/" class="ee" onClick="_gaq.push(['_trackEvent', 'Landing page', 'call to action', 'Pricing']);">Pricing for support and the enterprise features of GitLab EE</a>
             <br>