lack of documentation for training with provided py files

[youngfisher]

I joined the 7-day free online courses for paddleGan. Thanks for the courses. During recent homework, I found that most of code have already been implemented in several py files, like video-enhance.py, main.py. Training and evaluation is just to execute those py files with different parameters. When trying to read those py files from the first line, relations between files called are so ambiguous that I fall to confusion very soon. I suggest that maybe some documentation can be provided, like detailed relation chart, more comment on classes and files to explain its utility similar to what part of a normal training, the user written API call method.

[LielinJiang]

Thank you for your feedback, we will improve these issues as soon as possible

[JunnYu]

问题过于久远，如果有图像和视频生成的需求，可以使用新的跨模态工具: https://github.com/PaddlePaddle/PaddleMIX/tree/develop