Font Awesome 5 Pro CDN Link
<link href="https://pro.fontawesome.com/releases/v5.10.0/css/all.css" rel="stylesheet">
Developers
<link href="https://pro.fontawesome.com/releases/v5.10.0/css/all.css" rel="stylesheet">
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.13.0/css/all.css">