Update README.md

Author: Federico Moyá

README.md

@@ -2,7 +2,7 @@
 
 ***Note: To learn more about SimpleCov, check out the main repo at [https://github.com/simplecov-ruby/simplecov](https://github.com/colszowka/simplecov***)***
 
-Generates a formatted JSON report of your [SimpleCov](https://github.com/simplecov-ruby/simplecov) ruby code coverage results on ruby 2.4+.
+Generates a formatted JSON report of your [SimpleCov](https://github.com/simplecov-ruby/simplecov) ruby code coverage results on ruby 2.4+. Originally intended to add `simplecov`'s results reading capacity to CI tools. 
 
 ## Overview