Add Data Flow diagram to readme.

Author: Malcolmnixon

README.md

@@ -23,6 +23,12 @@ The following branches are in active development:
 
 Godot [XRHandTracker](https://docs.godotengine.org/en/latest/classes/class_xrhandtracker.html) data is generated by some XR systems such as OpenXR. This project contains assets capable of detecting standard and user-defined hand poses and firing signals when the user poses their hands in those configurations.
 
+## Data Flow
+
+![Hand Pose Pipeline](/docs/hand_pose_pipeline.png)
+
+This system takes [XRHandTracker](https://docs.godotengine.org/en/latest/classes/class_xrhandtracker.html) information provided by the XR System and feeds it to a Pose Detector. The pose detector feeds into a Pose Controller which generates an [XRControllerTracker](https://docs.godotengine.org/en/latest/classes/class_xrcontrollertracker.html) to drive an [XRController3D](https://docs.godotengine.org/en/latest/classes/class_xrcontroller3d.html). Game functions can then be bound to the controller.
+
 
 ## Usage