GitLab

* [Enhance] Support register function.

* fix unittest error

* add docs and unittest of register function

* modify the docs

* fix version to 1.5.1

* Update docs/zh_cn/understand_mmcv/registry.md
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* Update docs/en/understand_mmcv/registry.md
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* refine the docs

* modify module_class to module
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* [Docs] Refactor the structure of documentation

* [Docs] Refactor the structure of documentation

* fix symlink

* fix link

* fix typo

* polish docstring

* fix docstring

* [Docs] Update FAQ

* update faq

* polish the description

* update faq

* update faq

* improve the faq

* improve the faq

* improve the faq

* [Docs] Polish README

* [Docs] Polish README

* [Docs] Polish README

* fix typo

* update qq link

* fix typo

* update LICENSES.md

* Add Chinese translation of config.md.

* Add Chinese translation of registry.md and fix config.md

* Update config.md

* Update registry.md

* Update config.md

* Update config.md

* Update registry.md

* Update config.md

* fix format

* polish translation

* polish translation

* polish translation
Co-authored-by: zhouzaida <zhouzaida@163.com>

* Remove _build directroy in docs_zh_CN

* Change utils title to Chinese

* Translate documents

* Translate documents

* Use symbolic link to avoid repeated images

* Use symbolic link to avoid repeated images

* fix readme.md

* update copyright

* refactor docs

* rename title to Chinese