https://github.com/aibooks/aibooks.github.io
https://github.com/DeqianBai/Hands-on-Machine-Learning
https://github.com/ljpzzz/machinelearning
https://github.com/SaveTheRbtz/ml-class
https://github.com/BrambleXu/pydata-notebook
https://github.com/Robinwho/Deep-Learning