prefix edit link path with docs/

Author: benbalter

docs/_layouts/page.html

@@ -20,6 +20,6 @@ <h2 class="lede">{{ page.description }}</h2>
 <p>
   <em>
     Found a mistake? See something that can be made better? These docs are open source. <br />
-    Please help <a href="https://github.com/{{ site.github.repository_nwo }}/edit/master/{{ page.path }}">improve this page</a>.
+    Please help <a href="https://github.com/{{ site.github.repository_nwo }}/edit/master/docs/{{ page.path }}">improve this page</a>.
   </em>
 </p>