Creating a dataset with Librispeech Train_clean_100, Test_clean, and Dev_clean

What is the easiest way to create a custom dataset consisting of the Librispeech Train_Clean_100,Test_Clean and Dev_clean datasets? Im just trying to do this by uploading code and the datasets from Openslr. Can anyone one give me some advice and how I would go about this. I’ve looked over the tutorial but Im just not getting it.