Small comments on `.gitignore`

[erikdao]

Dear authors,

Thank you very much for sharing the source code of the paper. Indeed, the method presented in the paper is very interesting and the results look promising.
I have two small comments regarding the organization of this repository. I could see that python compiled files (i.e., .pyc, __pycache__) and Jupyter notebook checkpoints (i.e., .ipython_checkpoints) are also committed to this repo. I believe the standard practice is to not include these files in a Git repository.
Additionally, I think it would be helpful to include a requirements.txt listing the required python packages to run this repo. I would be more than happy to open a pull request for these changes.

My 2 cents!
Best,

[vasgaowei]

Thanks for your response, it would be nice if you help refine this repository. Looking forward to your pull request.