Write a document describing the method

[ColmTalbot]

• Write a brief research note describing the method, this will have a lot of overlap with Examples #3 and Documentation #5

[afarah18]

One thing that may be nice to include is at least mentioning how this could be used in non-GW cosmology analyses. There's clearly a need for this (see https://github.com/DifferentiableUniverseInitiative/jax_cosmo?tab=readme-ov-file paper for a package that was developed for analyses using galaxy probes, power spectra, weak lensing, etc. but does not implement simple things like H(z) and luminosity distance derivatives as wcosmo has). It could be cool to do a simple analysis demonstrating this, but I'm not sure how simple you can make those analyses as I haven't done one in a very long time and its probably not worth our time. I guess I'm just saying that wcosmo is probably useful beyond just GW cosmology and we should make that point

[ColmTalbot]

This would be great to have, I think it's worth putting at least a little thought into.