[core]: added ga to showcase

ga as in google analytics

Author: maifeeulasad

showcase/index.html

@@ -59,6 +59,12 @@ <h3>Here is my contribution graph : </h3>
 
 
 
+    <script>
+      window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)};ga.l=+new Date;
+      ga('create', 'UA-136427840-2', 'auto');
+      ga('send', 'pageview');
+   </script>
+   <script async src='https://www.google-analytics.com/analytics.js'></script>
 
   </body>
-</html>
+</html>