_includes/head.html

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <link rel="shortcut icon" type="image/x-icon" href="{{ site.baseurl }}/favicon.ico?">
  <title>
    {% if page.title %}
      {{ page.title }} | PyTorch
    {% else %}
      PyTorch
    {% endif %}
  </title>
  {% include open_graph_tags.html %}
  <link rel="stylesheet" href="{{ site.baseurl }}/assets/main.css">
  <script src="{{ site.baseurl }}/assets/vendor/jquery.min.js"></script>
  <script src="{{ site.baseurl }}/assets/vendor/popper.min.js"></script>
  <script src="{{ site.baseurl }}/assets/vendor/bootstrap.min.js"></script>
  <script src="{{ site.baseurl }}/assets/vendor/anchor.min.js"></script>
  <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/docsearch.js@2/dist/cdn/docsearch.min.js"></script>
  {% if jekyll.environment == 'production' %}
    {% include analytics.html %}
    {% include pixel.html %}
    {% include google_tag.html %}
  {% endif %}
  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/docsearch.js@2/dist/cdn/docsearch.min.css" />
</head>