docs/ Remove whitespace at EOL

docs/_layouts/default.html

@@ -49,7 +49,7 @@
 <script>document.write('<script src="http://' + (location.host || 'localhost').split(':')[0] + ':35729/livereload.js?snipver=1"></' + 'script>')</script>
 {% endunless %}
  {% comment %} This script makes the examples collapse appropriately {% endcomment %}
- 
+
 <script>
     $('.example-collapse').click(function (e) {
         e.preventDefault();
@@ -59,4 +59,4 @@
 </script>
 </body>
 
-</html>
+</html>