README

Added the following to the Tumblr page:

  <body class="{block:IfDarkColourScheme}dark{/block:IfDarkColourScheme}"  onload="iframeResizePipe()">
  
  <!-- Added by dfcarney, along witht the iframeResizePipe() call above -->
<iframe id="helpframe" src='' height='0' width='0' frameborder='0'></iframe>
<script type="text/javascript">
  function iframeResizePipe()
  {
     // What's the page height?
     //var height = document.body.scrollHeight;
     var height = $(document.body).height();

     // Going to 'pipe' the data to the parent through the helpframe..
     var pipe = document.getElementById('helpframe');

     // Cachebuster a precaution here to stop browser caching interfering
     pipe.src = 'http://localhost:4000/helper.html?height='+height+'&cacheb='+Math.random();

  }
</script>  
<!-- END added by dfcarney -->