Selenium Tests Framework (referred as STF from here on) is a test automation framework for automated testing of Desktop web, mobile site and mobile apps. STF is based on WebDriver, Appium, TestNG and Maven.
If you are looking for a sample project which uses STF then you should clone seleniumtests project and not this project. seleniumtests uses STF and demonstrates its features.
Have a question or feature request? Post it under comment section of STF Features
Clone the project and submit pull request :)