Appendix d/e/f: updating user guide page to adhere to style guide (data_leakage_handling, distribution, early_stopping, eps_prob, eps_sdev, estimate_k, exclude_algos, export_checkpoints_dir, extension_level, family, fold_assignment, fold_column)

[hannah-tillman]

Algo-params D, E, and F:

• [ ] data_leakage_handling
• [ ] distribution
• [ ] early_stopping
• [ ] eps_prob
• [ ] eps_sdev
• [ ] estimate_k
• [ ] exclude_algos
• [ ] export_checkpoints_dir
• [ ] extension_level
• [ ] family
• [ ] fold_assignment
• [ ] fold_column