documenting system and dependency requirements

[scott2b]

There is no requirements.txt file or documentation of the dependencies. So far, I have sleuthed out the following, which may or may not be the right versions:

nltk==3.4
pandas==0.24.2
torch==1.5.0

I still don't have it running since apparently a CUDA device is required. If I try to run main.py, I get the following error:

AttributeError: 'module' object has no attribute '_cuda_setDevice'

I tried setting the env variable:

CUDA_VISIBLE_DEVICES=""

which should prevent PyTorch from trying to use cuda, but this is not working.