• Get a GitHub account and login
• Fork the project on GitHub: Click the FORK button on the top right on this repo's page
• Get a Git client on your desktop (e.g. GitHub Desktop)
• Clone your fork on your desktop (through the Git client)
• Get NetBeans IDE on your desktop
• Open the cloned folder in NetBeans (File -> Open Project -> Choose the folder)
• Write code. Use the Run button to test. Build button to build artifact.
• When done, add, commit and push changes to your GitHub fork.

A more detailed tutorial will be here shortly.