Изменения

* [https://towardsdatascience.com/multi-layer-neural-networks-with-sigmoid-function-deep-learning-for-rookies-2-bf464f09eb7f Multi-Layer Neural Networks with Sigmoid Function, Towards Data Science]

* [https://www.kaggle.com/dansbecker/rectified-linear-units-relu-in-deep-learning Rectified Linear Units (ReLU) in Deep Learning, Kaggle]