This is markdown-it plugin. And, this plugin is a further fork of markdown-it-footnote-here, which is a fork of the original markdown-it-footnote plugin.
This plugin inserts footnotes just below paragraphs.
The input Markdown and the output HTML are as follows.
Markdown:
A paragraph.[^1]
[^1]: A footnote.
A paragraph.HTML:
<p>A paragraph.<a href="#fn1" id="fn-ref1" class="fn-noteref" role="doc-noteref">[1]</a></p>
<aside id="fn1" class="fn" role="doc-footnote">
<p><a href="#fn-ref1" class="fn-backlink" role="doc-backlink">[1]</a> A footnote.</p>
</aside>
<p>A paragraph.</p>const md = require('markdown-it')()
.use(require('@peaceroad/markdown-it-footnote-here'));
md.render(/*...*/) // See examples abovenpm install @peaceroad/markdown-it-footnote-here