Update resources.md music section (#91)

corrects a link and adds some descriptive text to the music drivers and trackers section.

Author: shoofle

website/resources.md

@@ -285,8 +285,8 @@ The [Choosing tools for Game Boy development](https://gbdev.io/guides/tools.html
 
 #### Music drivers and trackers
 
-- [DevSound](https://github.com/DevEd2/DevSound) - Sound driver embeddable in homebrews which supports pulse width manipulation, arpeggios, and multiple waveforms.
-- [Carillon Player](http://gbdev.gg8.se/files/musictools/Aleksi%20Eeben/Carillon%20Editor.zip) - Music Engine.
+- [DevSoundX](https://github.com/DevEd2/DevSoundX) - Sound driver embeddable in homebrews which supports pulse width manipulation, arpeggios, and multiple waveforms.
+- [Carillon Player](http://gbdev.gg8.se/files/musictools/Aleksi%20Eeben/Carillon%20Editor.zip) - Music Engine with a tracker that runs on the Game Boy.
 - [GBT PLAYER](https://github.com/AntonioND/gbt-player) - A music player library and converter kit.
 - [mmlgb](https://github.com/SimonLarsen/mmlgb) - A MML parser and GBDK sound driver for the Nintendo Game Boy.
 - [XPMCK](https://github.com/bazzinotti/XPMCK) - An MML based music compiler with support for Game Boy & Game Boy Color.