Error in readme / example usage

[GarethCabournDavies]

Using the example https://github.com/sxs-collaboration/gwsurrogate/tree/master?tab=readme-ov-file#download-surrogate-data-and-load-it

I found that once the surrogate has been evaluated, dyn is returned as None, this is at odds with the comment statement dyn stands for dynamics, do dyn.keys() to see contents

Looking into help(sur) for the NRSur7dq4 surrogate, it says This is None for nonprecessing models, so I think this is just a case of updating that comment

[GarethCabournDavies]

This was found in openjournals/joss-reviews#7073