Add Fashion MNIST dataset.

Author: trekhleb

data/README.md

@@ -19,8 +19,6 @@ Each row in the dataset consists of 785 values: the first value is the label (a
 _Source: [Kaggle](https://www.kaggle.com/zalando-research/fashionmnist)_
 
 Fashion-MNIST is a dataset of Zalando's article images—consisting of a training set. Each example is a 28x28 grayscale image, associated with a label from 10 classes. Zalando intends Fashion-MNIST to serve as a direct drop-in replacement for the original MNIST dataset for benchmarking machine learning algorithms. It shares the same image size and structure of training and testing splits.
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-The original MNIST dataset contains a lot of handwritten digits. Members of the AI/ML/Data Science community love this dataset and use it as a benchmark to validate their algorithms.
 
  Instead of using full dataset with 60000 training examples we will use cut dataset of just 5000 examples that we will also split into training and testing sets.