Update README.md

Author: RichardEllicott

README.md

@@ -1,3 +1,14 @@
 # Godot Reverb
 
-tested on Godot Engine v4.4.1.stable
+## What?
+
+a simple wrapper for the excellent:
+https://github.com/el-visio/dattorro-verb/tree/41e976a0228a2472156f5c010b3bfbb444e777d2
+
+## Why?
+
+unlike Godot's reverb based on freeverb, the diffusion of this reverb doesn't have the same resonant sound characteristic created by freeverb. El Visio's awesome repo is linked as a submodule
+
+## Notes
+
+tested on Godot Engine v4.4.1.stable and working, i'm still figuring out SCONS a bit, please let me know if you find anything bad or unusual (i think one issue i'm still working on is the template i forked creats Obj files everywhere)