Add analytics tag

Signed-off-by: Matt Oswalt <[email protected]>

templates/partials/head.html

@@ -10,6 +10,15 @@
 <link href="/node_modules/nre-styles/dist/styles.css" rel="stylesheet" />
 <link href="https://use.fontawesome.com/releases/v5.7.2/css/all.css" rel="stylesheet" crossorigin="anonymous" />
 
+<!-- Global site tag (gtag.js) - Google Analytics -->
+<script async src="https://www.googletagmanager.com/gtag/js?id=UA-157122383-1"></script>
+<script>
+  window.dataLayer = window.dataLayer || [];
+  function gtag(){dataLayer.push(arguments);}
+  gtag('js', new Date());
+
+  gtag('config', 'UA-157122383-1');
+</script>
 <script>
   window.ENVIRONMENT = "{{ env['ANTIDOTE_WEB_ENV'] or 'production' }}";
   window.COMMIT_HASH = "{{ antidote_version }}";