Add search to docs

Closes: #295

website/site/templates/index.html

@@ -17,19 +17,5 @@
          flags: elmFlags
      });
     </script>
-    <!-- Fathom - simple website analytics - https://github.com/usefathom/fathom -->
-    <script>
-     (function(f, a, t, h, o, m){
-         a[h]=a[h]||function(){
-             (a[h].q=a[h].q||[]).push(arguments)
-         };
-         o=f.createElement('script'),
-         m=f.getElementsByTagName('script')[0];
-         o.async=1; o.src=t; o.id='fathom-script';
-         m.parentNode.insertBefore(o,m)
-     })(document, window, '//webstats.daheim.site/tracker.js', 'fathom');
-     fathom('set', 'siteId', 'OGJDF');
-     fathom('trackPageview');
-    </script>
-    <!-- / Fathom -->
+    {% include "fathom.html" %}
 </html>