haoshengjia

Hi, thanks for your open source project. I can't download the H3DNet checkpoint path file. I don't know why, maybe it's because my operation is incorrect . Looking forward to...

### Prerequisite - [X] I have searched [Issues](https://github.com/open-mmlab/mmdetection3d/issues) and [Discussions](https://github.com/open-mmlab/mmdetection3d/discussions) but cannot get the expected help. - [X] I have read the [FAQ documentation](https://mmdetection3d.readthedocs.io/en/latest/notes/faq.html) but cannot get the expected help....