Fixed requirements for non-CUDA Ubuntu (22.04) system #35
Description
With some package versions being incompatible with Python 3.7.4 and torch (1.4.0) and torch geometric (1.4.3) not being shipped with torch scatter and torch sparse, I think using the provided requirements will fix dependency issues for most (with non-CUDA Ubuntu 22.04 systems). Just wanted to put this out there as I stumbled upon this while trying to run the code.