Add Bitdeli Badge for anaytics

I am adding Bitdeli too beside Githalytics. I am not sure which one will prove more effective.

README.md

@@ -15,3 +15,5 @@ This is how a generated article looks like
 ![Article screenshot](https://raw.github.com/talha131/pelican-elegant/master/article-screenshot.png)
 
 [![githalytics.com alpha](https://cruel-carlota.pagodabox.com/c71132a529c1c5d7eb8dc5ea4825a851 "githalytics.com")](http://githalytics.com/talha131/pelican-elegant)
+
+[![Bitdeli Badge](https://d2weczhvl823v0.cloudfront.net/talha131/pelican-elegant/trend.png)](https://bitdeli.com/free "Bitdeli Badge")