GitLab

* Use mdformat pre-commit hook

* allows consecutive numbering

* improve .mdformat.toml

* test mdformat

* format markdown

* minor fix

* fix codespecll

* fix circleci

* add linkify-it-py dependency for cicleci

* add comments

* replace flake8 url

* add mdformat-myst dependency

* remove mdformat-myst dependency

* update contributing.md

* [Docs] Refactor the structure of documentation

* [Docs] Refactor the structure of documentation

* fix symlink

* fix link

* fix typo

* polish docstring

* fix docstring

* [Docs] Improve the style of pr.md

* fix symlink

* improve style

* fix format

* add myst-parser extension for sphinx

* make note style more beautiful

* fix typo

* fix typo

* [Docs] Add PR document

* format

* idx modify

* revise according to comments

* add blank line

* grammar

* insert blank line after title

* revise according to comments

* revise according to comments

* typo

* resize image3

* lint

* del print

* fix lint

* del unused
Co-authored-by: zhouzaida <zhouzaida@163.com>