Font Awesome 5 Icons not working on Bootstrap 4
Try the snippet. Changed the fas fa-github to fab fa-github.
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<link href="https://use.fontawesome.com/releases/v5.0.4/css/all.css" rel="stylesheet">
<div class="jumbotron">
<h1 class="display-4">Henrique Borges</h1>
<p class="lead">Programador experiente e Web Designer.</p>
<hr class="my-4">
<p>It uses utility classes for typography and spacing to space content out within the larger container.</p>
<p class="lead">
<i class="fab fa-github btn btn-dark btn-lg" href="#" role="button"> Github</i>
</p>
</div>I have run into this problem before, particularly with the fas class. For me it has always been manually upgrading my font awesome style sheet tag in my head.
For whatever reason, dependency managers like yarn don't always have the very latest version of font awesome.
https://fontawesome.com/how-to-use/on-the-web/setup/getting-started?using=web-fonts-with-css
<!-- FontAwesome -->
<link
rel="stylesheet"
href="https://use.fontawesome.com/releases/v5.3.1/css/all.css"
integrity="sha384-mzrmE5qonljUremFsqc01SB46JvROS7bZs3IO2EmfFsd15uHvIt+Y8vEf7N7fWAU" crossorigin="anonymous">