Added README

Author: danielperano

README.md

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+# WebGPU Bindings for Java
+
+This project automatically generates and packages Panama bindings for the
+[wgpu-native](https://github.com/gfx-rs/wgpu-native) implementation of 
+[WebGPU's native C API](https://github.com/webgpu-native/webgpu-headers/).
+This is an automated process - everytime there is a new release of `wgpu-native`,
+a GitHub Action in this repository generates and publishes a corresponding binding.
+
+The built jar files are published as Maven artifacts in the 
+[MyWorld Package Repository](https://github.com/MyWorldLLC/Packages/packages/2097504).
+Note that it is currently the case that you are responsible for acquiring and packaging
+`wgpu-native` builds for your platform, however, support for publishing these libraries
+as `jlink`-able modules as planned.