Add Google Analytics (#22)

closes #20

_layouts/base.html

@@ -13,7 +13,16 @@
 
     <script src="/assets/main.js"></script>
     <script src="https://assets.gfycat.com/gfycat.js"></script>
+    <script>
+      (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+      (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+      m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+      })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
 
+      ga('create', 'UA-81630712-1', 'auto');
+      ga('send', 'pageview');
+
+    </script>
   </body>
 
 </html>