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* [Docs] Polish README

* [Docs] Polish README

* [Docs] Polish README

* fix typo

* update qq link

* fix typo

* update LICENSES.md

* Fix typo on pip install mmcv-full torch1.9 cpu

* 修改 pip install mmcv-full torch1.9 cpu 的错别字

* Fix typos in installation.md

Point to https://download.openmmlab.com/mmcv/dist/cpu/torch1.9.0/index.html

* [Docs] Update readme and docs

* add Chinese introduction

* fix table error

* [Docs] Fix sphinx version

* [Docs] Remove sphinx_markdown_tables

* update readme link

* add sphinx_rtd_theme package

* add license

* fix lint

* fix some discription

* fix some discriptions and dirty marks

* fix format

* revise some words

* Update README_zh-CN.md

* Update README_zh-CN.md
Co-authored-by: Wenwei Zhang <40779233+ZwwWayne@users.noreply.github.com>

* [Docs] Refactor readme.md

* use lowercase

* [Docs] Add mmocr link

* Update README.md

* Update README_zh-CN.md

* Bump version to v1.3.0

* Update README.md

* Update README_zh-CN.md

* add readme of chinese version

* add contribution guide