Share the method to train and inference OFA-CN model with huggingface’s transformers

[yangjianxin1]

I have implemented a respository, and succeed to use transformers to train OFA-CN model and inference. I succeed to convert the official pretrained cn checkpoint to transformers version: https://github.com/yangjianxin1/OFA-Chinese

[JustinLin610]

Thanks for your contribution very much (and sorry for my late response)! I'll check it as soon as possible.