Update header.html

Author: lefticus

_includes/header.html

@@ -78,6 +78,12 @@
 <div class="hidden-print">
   <div class="container">
     <ul class="list-inline">
+      <li>
+        <a href="https://www.patreon.com/bePatron?u=2977989&redirect_uri=https%3A%2F%2Fwww.patreon.com%2Flefticus">
+          <img height="40" width="204" src="https://s3-us-west-1.amazonaws.com/widget-images/become-patron-widget-medium%402x.png">
+        </a>
+      </li>
+
       <li>
         <script id='fb42tzq'>(function(i){var f,s=document.getElementById(i);f=document.createElement('iframe');f.src='//api.flattr.com/button/view/?uid=lefticus&button=compact&url='+encodeURIComponent(document.URL);f.title='Flattr';f.height=20;f.width=110;f.style.borderWidth=0;s.parentNode.insertBefore(f,s);})('fb42tzq');</script>
       </li>