Merge pull request #410 from cowang4/patch-2

Change nomicon to 'nomicon in button on learn page

Author: ashleygwilliams

templates/learn/index.hbs

@@ -163,7 +163,7 @@
 
           <a class="button button-secondary"
              href="https://doc.rust-lang.org/nomicon/index.html">
-            Read the nomicon
+            Read the 'nomicon
           </a>
         </div>
       </div>