<sub> tag for markdown-it markdown parser.
npm install markdown-it-sub


> Subscript () tag plugin for markdown-it markdown parser.
__v1.+ requires markdown-it v4.+, see changelog.__
H~2~0 => H2O
Markup is based on pandoc definition. But nested markup is currently not supported.
node.js, browser:
``bash`
npm install markdown-it-sub --save
bower install markdown-it-sub --save
`js
var md = require('markdown-it')()
.use(require('markdown-it-sub'));
md.render('H~2~0') // => '
H2O
'_Differences in browser._ If you load script directly into the page, without
package system, module will add itself globally as
window.markdownitSub`.