Update backers April 2018

docs/backers.html

@@ -9,6 +9,17 @@ breadcrumb:
 ---
 
 <h2 class="title is-5">
+  Documentation sponsors via Patreon ($500+)
+</h2>
+<div class="content">
+  <ul>
+    {% for backer in site.data.backers["500"] reversed %}
+      {% include elements/patreon-item.html %}
+    {% endfor %}
+  </ul>
+</div>
+
+<!-- <h2 class="title is-5">
   Website sponsors via Patreon ($300+)
 </h2>
 <div class="content">
@@ -17,7 +28,7 @@ breadcrumb:
       {% include elements/patreon-item.html %}
     {% endfor %}
   </ul>
-</div>
+</div> -->
 
 <h2 class="title is-5">
   Homepage sponsors via Patreon ($100+)