* add gif

* replace gif

* minor refine

* replace gif with higher resolution

* change pre-commit-config

* modify docs with pre-commit hook

* change pre-commit-config-zh-cn

* fallback readme.md

Co-authored-by: HAOCHENYE <21724054@zju.edu.cn>

* [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>

* [Docs] Make API of docs clearer

* minor fix

* fix md format

* Update demo in get started tutorial

* Update demo tutorial

* Refactor the pytorch demo

* Add outline and titles to the demo tutorial.

* Move file and change title

* Add shuffle in dataloader arguments.

* Improve according to comments

* add introduction of mmengine in get_started.md

* resolve comments

* resolve comments

* resolve comments

* resolve comments

* resolve comments

* resolve comments

* update figs

* Add installation docs

* fix typo