Add Anaconda environment.yml

[alternative-imaginaries]

Firstly: Awesome project!

You recommend using Anaconda in the install description.
Would it be possible to add an environment.yml with all needed dependencies to the repository to ease the installation process?

[EndlessSora]

Thanks for the great suggestion. I did not add this file because users may have different hardware environment, such as the GPU Driver, which may need compatible CUDA toolkit and PyTorch version. So temporarily, I just let them follow the Requirements section to install the suitable one. I will consider adding it later.