<link rel="stylesheet" href="https://unpkg.com/octicons@8.5.0/build/build.css">
<script src="https://github.com/site/assets/styleguide.js" async></script>

<link rel="stylesheet" href="https://unpkg.com/octicons@8.5.0/build/build.css">
<link rel="stylesheet" href="https://github.com/site/assets/styleguide.css">
<script src="https://github.com/site/assets/styleguide.js" async></script>

Include GitHub's stylesheet.css in storybook head
Include GitHub's stylesheet.css in storybook head

A couple of Primer CSS components need GitHub's stylesheet.css to render correctly (I'm looking at you, dropdown). This adds it to the Storybook config directory along with preexisting stylesheet.js.