* revise docs

* Update README.md

Co-authored-by: Qian Zhao <112053249+C1rN09@users.noreply.github.com>

Co-authored-by: Qian Zhao <112053249+C1rN09@users.noreply.github.com>

* fix loss mean

* update

* Add smddp dist backend option

* [Dev]: Upgrade pre commit hooks (#576)

* Upgrade the versions of pre-commit-hooks

* update zh-cn.yaml

* [Docs] Fix the docstring of model sub-package (#573)

* [Doc]: Update config.md (#562)

* Update config.md

* Update config.md

* [Doc] delete the error comment  in docs (#514)

Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>
Co-authored-by: Zhengfei-0311 <78833899+Zhengfei-0311@users.noreply.github.com>
Co-authored-by: vansin <msnode@163.com>

* fix dist ut

* fix config & hub ut break due to mmdet faster-rcnn rename

* Update config.md

* Update config.md

* Upgrade the versions of pre-commit-hooks

* update zh-cn.yaml

* [Refactor] Refactor fileio but without breaking bc

* handle compatibility

* fix format

* modify io functions

* fix ut

* fix ut

* rename method names

* refine

* refine docstring

* fix ut in windows

* update ut

* minor fix

* ensure client is not None when closing it

* add more examples for list_dir_or_file interface

* refine docstring

* refine deprecated info

* fix ut

* add a description for lmdb docstring

* [Fix] Support compare numpy array dataset meta

* Add comment

Remove unnecessary "if statement".

* fix merge ci

* make timeout larger

* tmp test merge

* debug

* sleep 1 in optimizer ut

* skip test clip grad

* skip test clip grad

* fix merge ci

* [Feature] Support convert BN to SyncBN by config

* make unit test compatible with cpu

* Fix as comment

* fix unit test

* change signature of convert_sync_batchnorm: rename sync_bn to implemention

* fix unit test

* fix unit test

* fix merge ci

* make timeout larger

* [Docs] Fix api files of en docs

* minor fix

* fix ema load_state_dict

* fix ema load_state_dict

* fix for test

* fix by review

* fix resume and keys

* wandb define_metric

* fix docs

* add wandb docs link

* Add dockerfile

* update README

* resolve comments

* Remove unnecessary commands

* Simplify the dockerfile

* enable to specific mmengine version

* Update README.md

* revert

* bugfix wandb image

* del judged

* use self._wandb

* [CI] Update Github Action CI and CircleCI

* clear outdated commands in CI

* clear outdated commands in CI

* add '-r' when installing packages from txt

* update

* update circleci

* fix mismatch conflicts

* update

* install system dependencies

* update

* set env

* fix ut

* update cuda version on Windows

* update push action

* [Docs] Fix outdated index

* update index.rst

* fix readme url

* update readme

* fix typos

* [Docs] Add readthedocs.yml

* include torch in readthedocs.yml

* add torch torchvision in docs.txt

* [WIP] Refactor-docs-structure

* [Docs] Check link and fix rst  (#498)

* check link

* fix rst

* Fix conf.py

* Fix lint

* minor refine

* minor refine

* modify zh_readme and index.rst

* add migration exampls get_started design to en

* add tutorials to en

* correct chinese doc link

* Apply suggestions from code review

* Update docs/en/advanced_tutorials/distributed.md

Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

Co-authored-by: Mashiro <57566630+HAOCHENYE@users.noreply.github.com>

* fix unit test install mmdet and mmcls

* raise error when mmdet is not installed

* rename check_and_install to install_package

* split test case

Co-authored-by: C1rN09 <zhaoqian@pjlab.org.cn>