Merge pull request #98 from gvwilson/adding-url-placeholder

Adding url placeholder

LICENSE.md

 ---
-layout: lesson
+layout: page
 title: Licenses
 ---
 ### Instructional Material

_includes/footer.html

 <div class="footer">
-  <a class="label swc-blue-bg" href="mailto:admin@software-carpentry.org">Email</a>
-  <a class="label swc-blue-bg" href="http://github.com/swcarpentry">GitHub</a>
+  <a class="label swc-blue-bg" href="http://software-carpentry.org">Software Carpentry</a>
+  <a class="label swc-blue-bg" href="https://github.com/swcarpentry/lesson-template">Source</a>
+  <a class="label swc-blue-bg" href="mailto:admin@software-carpentry.org">Contact</a>
   <a class="label swc-blue-bg" href="LICENSE.html">License</a>
-  <a class="bugreport label swc-blue-bg" href="mailto:admin@software-carpentry.org?subject=bug%20in%20{{page.path}}">Bug Report</a>
 </div>