* change docs from 1.x to main
* bump version
* update readme status info and highlights
* revert version change
* fix dead links
* fix script
* fix docs
* fix building status
* fix md lint error
* upgrade to ubuntu20.04 for github ci
* Revert "upgrade to ubuntu20.04 for github ci"
This reverts commit 9c598f4857633dfb96b116ca9fb9a5d15b5fa6b4.
* update codebase md files
* upgrade to ubuntu20.04 for github ci
* fix
* fix requirements
* fix
* fix ci
* bump version
* fix
* fix pplnn torchscript
* fix building status
* fix ncnn
* fix
* remove circileci hold
* fix pytorch image
* save codes
* support resnet and yolov3
* support yolox
* fix lint
* add mmseg support and a doc
* add UT
* update supported model list
* fix ci
* refine docstring
* resolve comments
* remote output_tensor_type
* resolve comments
* update readme
* checkout qq group qrcode
* update the cover image
* update build doc
* reorganize chapters
* update readme
* remove index of build on different platforms in readthedocs
* update benchmark
* update get started document in Chinese based on the prebuild package
* update get_started
* re-style benchmark
* update get_started in zh_cn
* update get_started in english
* update get_started in english
* update get_started in english
* update get_started doc
* update according to reviewer comments
* update linker ci
* fix(.github/scripts/check_doc_linker.py): skip code block
* specify PYTHONPATH
* update get_started
* update diagram
* rename some documents
* fix according to reviewer comments
Co-authored-by: tpoisonooo <khj.application@aliyun.com>