A markdown-it plugin supporting Chrome 75's native image lazy-loading.
$ npm install markdown-it-image-lazy-loading
const md = require('markdown-it')();
const lazy_loading = require('markdown-it-image-lazy-loading');
md.use(lazy_loading);
md.render(`![](example.png "image title")`);
// <p><img src="example.png" alt="" title="image title" loading="lazy"></p>\n
MIT