Can't upload the larger model file(9GB)
Hey, guy, I got a problem when I upload my new model file, it raises an error.
```
/data2/CPM-TF/CPM-Third-Party on  main ⌚ 23:30:47
$ git push 
Username for 'https://huggingface.co': mymusises                                                                                        
Password for 'https://mymusise@huggingface.co': 
LFS: Client error: https://s3.amazonaws.com/lfs.huggingface.co/mymusise/CPM-Third-Party/d853c...?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AK...%2F20201119%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20201119T153653Z&X-Amz-Expires=900&X-Amz-Signature=84...&X-Amz-SignedHeaders=host
error: failed to push some refs to 'https://huggingface.co/mymusise/CPM-Third-Party'
(env) 
/data2
```
Then, I delete the folder and try it again, and I noted there's an error when I add the model file:
```
/data2/CPM-TF/CPM-Third-Party on  main! ⌚ 23:24:04
$ git add --all
Encountered 1 file(s) that may not have been copied correctly on Windows:
	tf_model.h5
```

And I sure I have installed `glf` with `git lfs install` before doing this.
What should I do?

## system info

system: ubuntu 18.04.4
git version: 2.17.1
git-lfs version: 2.12.1


 Model Cards: @julien-c
This is a known issue that's being tracked at #8663