Update

main.ipynb

test_distance_matrix.py

test_evaluate_knn.py

test_knn_predict.py

test_learn_once_cross_entropy.py

test_learn_once_mse.py

test_mode.py

test_one_hot.py

test_predict_mlp.py

test_read_cifar.py

test_run_mlp_training.py

test_softmax.py

test_split_dataset.py

test_train_mlp.py

test_unpickle.py

tests/__init__.py