dataset folder structure

[fishneck]

with current instruction in preparing data, I received an error indicating missing components.

  File "/home/by2026/.local/lib/python3.8/site-packages/mpunet/image/image_pair_loader.py", line 228, in _get_paths_from_list_file
    raise OSError("File '%s' does not exist. Did you specify "
OSError: File '/scratch/by2026/OAI/MultiPlanarUNet/data/train/images/LIST_OF_FILES.txt' does not exist. Did you specify the correct img_subdir?

It happens when there's issue with images = sorted(glob.glob(str(self.images_path / "*.nii*"))) in line 239 for possible filename format problem. The .txt should be noted in the structure description in this situation. Thanks!