This script allows you to display the wordcount and reading time for a PubWriter page.
https://pubwriter.com/manifesto.md (Pubwriter)
https://pubwriter.com/pubwriter/manifesto.md (Source)
Add...
<div>Wordcount <strong id="textOut"></strong></div>
<div>Reading Time <strong id="time"></strong> Minutes</div>
<div id="pubwriter">
<script src="https://pubwriter.net/js/readingTime.js"></script>