in_header.html

<!-- Google tag (gtag.js) -->
<script async src="https://www.googletagmanager.com/gtag/js?id=G-E0YDB40HWY"></script>
<script>
  window.dataLayer = window.dataLayer || [];
  function gtag(){dataLayer.push(arguments);}
  gtag('js', new Date());
  gtag('config', 'G-E0YDB40HWY');
</script>

<link rel="apple-touch-icon" sizes="180x180" href="icons/apple-touch-icon.png">
<link rel="icon" type="image/png" sizes="32x32" href="icons/favicon-32x32.png">
<link rel="icon" type="image/png" sizes="16x16" href="icons/favicon-16x16.png">
<link rel="manifest" href="icons/site.webmanifest">
<link rel="mask-icon" href="icons/safari-pinned-tab.svg" color="#5bbad5">
<meta name="msapplication-TileColor" content="#da532c">
<meta name="theme-color" content="#ffffff">


<!-- https://www.bryanbraun.com/anchorjs/ -->
<script src="https://cdn.jsdelivr.net/npm/anchor-js/anchor.min.js"></script>
<script>
  // Add anchors on DOMContentLoaded
document.addEventListener('DOMContentLoaded', function(event) {
  anchors.add('h1');
  anchors.add();
});
</script>