Add Countly web analytics

README.md

@@ -120,6 +120,7 @@ A collective list of JSON APIs for use in web development.
 | API | Description | OAuth |Link |
 |---|---|---|---|
 | Drupal.org | Drupal.org API | No | [Go!](https://www.drupal.org/drupalorg/api) |
+| Countly  | Countly web analytics API | No | [Go!](http://resources.count.ly/) | 
 | Libraries.io | Open source software libraries | No | [Go!](https://libraries.io/api) |
 
 ### Security