* Add a new pre-commit-hook to automatically add copyright * Add a new pre-commit-hook to automatically add copyright * append 'demo' and 'tools' directories to .pre-commit-config.yaml
* use mmcv.utils.get_logger * add a unit test * fix ut * refine docstring * fix lint
* add a demo for rewrite * remove register symbolics * place two image in one line * width = 300 * use table to show two images * fix typo