removing icon name from copy paste icon example

src/_layouts/icon.html

@@ -48,7 +48,7 @@ relative_path: ../../
           </div>
         </div>
 {% highlight html %}
-<i class="fa fa-{{ page.icon.id }}"></i> fa-{{ page.icon.id }}
+<i class="fa fa-{{ page.icon.id }}"></i>
 {% endhighlight %}
         <br>
         <div class="lead"><i class="fa fa-info-sign"></i> Looking for more? Check out the <a href="{{ page.relative_path }}examples/">examples</a>.</div>