references to compatible physics lib

[mreinstein]

I recently ported the latest stable version of https://github.com/piqnt/planck.js to a version that supports array notation, and gets rid of all the Object Oriented stuff. Fundamentally what this means is one can use vec2 and vec3 between wgpu-matrix and planck without needing any conversion steps or duplicate vector implementations cluttering things up.

Would you be open to a PR where I reference this module somewhere? I didn't see a references section in the README or anything, so wasn't sure.

[mreinstein]

The port: https://www.npmjs.com/package/@footgun/planck