How to change location of `index_files`?

My index.ipynb runs code that produces one image. When compiling the README, nbdev creates a folder in the base of my repo called index_files/figure-commonmark and stores my image there. I would like to change the location of this folder because it makes my repo look cluttered, but I can’t figure out what setting to change.

Is there something I can change in settings.ini or the quarto execution options that will move this folder?

Repo for reference: GitHub - eigenvivek/DiffDRR: Auto-differentiable digitally reconstructed radiographs in PyTorch