Utilizing GitHub's primer and octicons. Upon installation with npm, I incorporated the css classes provided by GitHub through the inclusion of the build.css file in my HTML document. How can I direct the project to access all the SVG icons offered by octicons?
<!DOCTYPE html>
<html lang="en>
<head>
<meta charset="UTF-8>
<title>Hello Primer</title>
<link rel="stylesheet" href="node_modules/primer-css/build/build.css>
</head>
<body>
<form>
<div class="input-group">
<input class="form-control" type="text" placeholder="Username">
<span class="input-group-button">
<button class="btn">
<span class="octicon octicon-clippy"></span>
</button>
</span>
</div>
</form>
</body>
</html>