docs/_includes/meta.html
<meta charset="utf-8" />
<meta content='text/html; charset=utf-8' http-equiv='Content-Type'>
<meta http-equiv='X-UA-Compatible' content='IE=edge'>
<meta name='viewport' content='width=device-width, initial-scale=1.0, maximum-scale=1.0'>
{% if page.excerpt %}
<meta name="description" content="{{ page.excerpt| strip_html }}" />
<meta property="og:description" content="{{ page.excerpt| strip_html }}" />
{% else %}
<meta name="description" content="{{ site.description }}">
<meta property="og:description" content="{{ site.description }}" />
{% endif %}
<meta name="author" content="{{ site.name }}" />
{% if page.title %}
<meta property="og:title" content="{{ page.title }}" />
<meta property="twitter:title" content="{{ page.title }}" />
{% endif %}
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/css/bootstrap.min.css" integrity="sha384-GJzZqFGwb1QTTN6wy59ffF1BuGJpLSa9DkKMp0DgiMDm4iYMj70gZWKYbI706tWS" crossorigin="anonymous">
<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/default.min.css">
<script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/highlight.min.js"></script>
<link rel="stylesheet" href="{{ site.doc_baseurl }}/assets/css/style.css">