Combining Macrons to Underlines
Unicode combining macrons are a good choice in cases where characters require an underline for meaning, as in some systems of transliteration from Persian and Arabic. However, they aren't well supported for display on the internet. This markdown-it plugin will display these as regular underlined text, so that S͟hayk͟h is rendered as <u>Sh</u>ay<u>kh</u>.
Installation
yarn add markdown-it-macron-underline
Usage
let md = require('markdown-it')().use(require('markdown-it-macron-underline'))
md.render('S͟hayk͟h')