html: true option does not handle the case of line break after HTML tag

[saurabhdaware]

This code

const { Remarkable } = require("remarkable");

const md = new Remarkable({ html: true });

const markdownTextBug = `
<div
  class="hi"
>hello</div>
`;

console.log(md.render(markdownTextBug));

const markdownTextWorking = `
<div class="hi">hello</div>
`;

console.log(md.render(markdownTextWorking));

returns this

---

Usually prettier and other formatting tools format the code in 1st way so would be better if it can render it properly.

Also great library! Thank you for building it :D