Avoid meaningful variable

_config.yml

@@ -9,7 +9,7 @@
 title: BeagleBoard.org Google Summer of Code blog
 description: > # this means to ignore newlines until "baseurl:"
   A place where we can share regular updates on BeagleBoard.org GSoC activities.
-source: https://git.beagleboard.org/gsoc/gsoc.beagleboard.io
+sourceurl: https://git.beagleboard.org/gsoc/gsoc.beagleboard.io
 baseurl: "" # the subpath of your site, e.g. /blog
 url: "https://gsoc.beagleboard.io" # the base hostname & protocol for your site
 

_includes/footer.html

@@ -8,7 +8,7 @@
       <div class="footer-col footer-col-1">
         <ul class="contact-list">
           <li>{{ site.title }}</li>
-          <li><a href="{{ site.source }}">Source</a></li>
+          <li><a href="{{ site.sourceurl }}">Source</a></li>
         </ul>
       </div>