Add Google Analytics

_includes/head.html

@@ -13,4 +13,15 @@
   <link rel="stylesheet" href="{{ "/assets/blog.css" | prepend: site.baseurl }}">
   <link rel="stylesheet" href="{{ "/assets/syntax.css" | prepend: site.baseurl }}">
   {% if page.dataspy %}<link rel="stylesheet" href="{{ "/assets/fixed-sticky/fixedsticky.css" | prepend: site.baseurl }}">{% endif %}
+
+  <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','//www.google-analytics.com/analytics.js','ga');
+
+    ga('create', 'UA-47856851-3', 'auto');
+    ga('send', 'pageview');
+
+  </script>
 </head>