GitLab

* [Docs] Use PyTorch sphinx theme

* add sphinx-copybutton

* add twitter and zhihu link

* remove shpinx_rtd_theme from doc.xtx

* update docs.txt

* update conf.py

* [Fix] Fix pdf error when building docs

* fix docs

* fix pdf

* fix pdf

* fix pdf

* [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>

* fix doc generation

* add docs for optical flow

* fix typo