Jekyll plugin to recommend related posts

I wrote my first plugin for the Jekyll static website builder: a tool that&#xA;recommends related posts &#xA;at the end of each page. It determines the similarity between post pairs using&#xA;a fairly unremarkable token-counting algorithm, so it&rsquo;s fast enough to rerun on&#xA;every site build. You can configure the number of posts to recommend and a&#xA;parameter factor which determines the…