Added JoliCi to continuous integration part

README.md

 * [Travis CI](https://travis-ci.org/) - A continuous integration platform.
 * [PHPCI](http://www.phptesting.org/) - An open source continuous integration platform for PHP.
 * [Sismo](http://sismo.sensiolabs.org/) - A continuous testing server library.
+* [JoliCi](https://github.com/jolicode/JoliCi) - A Continuous Integration Client written in PHP and powered by Docker.
 
 ## Documentation
 *Libraries for generating project documentation.*