Mention requirements uses libraries specifically for cuda 10.2

[eddiebergman]

It might be worth mentioning that the requirements.txt specifically installs torch libraries for cuda 10.2 as this took a while to debug.

I am using this with torch 1.8.0+cu111 and it all seems to work as intended.

> pip list | grep torch
torch                  1.8.0+cu111
torch-cluster          1.5.9
torch-geometric        1.6.3
torch-scatter          2.0.6
torch-sparse           0.6.9
torch-spline-conv      1.2.1
torchaudio             0.8.0
torchvision            0.9.0+cu111