<commit_before><commit_msg>Add README explaining where the sample input images came from.<commit_after>Sample input images, from http://r0k.us/graphics/kodak/.

The original full-size lossless images are [here](http://www.math.purdue.edu/~lucier/PHOTO_CD/BMP_IMAGES/).

{'fraction_non_alphanumeric': 0.12267657992565056, 'fraction_numerical': 0.0037174721189591076, 'mean_word_length': 5.428571428571429, 'pattern_counts': {'":': 0, '<': 3, '<?xml version=': 0, '>': 3, 'https://': 0, 'lorem ipsum': 0, 'www.': 1, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '7437704', 'n_tokens_mistral': 90, 'n_tokens_neox': 86, 'n_words': 21}