[Documentation] Add more informations about the library 'afterburnerfx' in plugin ReadMe.

[Naoghuman]

Add more informations about the library 'afterburnerfx' in plugin ReadMe.

• http://afterburner.adam-bien.com/
• https://github.com/AdamBien/afterburner.fx
• http://www.adam-bien.com/roller/abien/entry/afterburner_fx_netbeans_plugin_release