uweb/en/searchurl/txt/remark.html

<script src="https://remarkjs.com/downloads/remark-latest.min.js">
</script>
<script type="text/javascript">
  window.onload=function(){
    var slideshow = remark.create({
      navigation: {
        click:  true,
      },
    });
  }
</script>

<textarea id="source">
class: middle