Subscript (<sub>) tag plugin for markdown-it markdown parser.

v1.+ requires markdown-it v4.+, see changelog.

H~2~0 => H<sub>2</sub>O

Markup is based on pandoc definition. But nested markup is currently not supported.

node.js, browser:

npm install markdown-it-sub --save
bower install markdown-it-sub --save

var md = require('markdown-it')()
            .use(require('markdown-it-sub'));

md.render('H~2~0') // => '<p>H<sub>2</sub>O</p>'

Differences in browser. If you load script directly into the page, without package system, module will add itself globally as window.markdownitSub.

MIT