PyTorch primer on Google Colab

https://colab.research.google.com/drive/1DgkVmi6GksWOByhYVQpyUB4Rk3PUq0Cp?fbclid=IwAR0egktp4bcporjNxqr7cdyIN6wO-W4XRFJnY9oKKNybmK8hU3CjRqOD_mQ#scrollTo=N0HvIaRRlrgK

https://colab.research.google.com/notebooks/welcome.ipynb?fbclid=IwAR2BeefyUaPaQtiu2BzvNV-4NmG5OPkd8hLPAkhsZTiLQAlXaNyqyMsIIco