* add fall down detection industry case

* modify the name of fall down industry case

* Update README_cn.md

* update yoloseries doc, test=document_fix

* fix link, test=document_fix

* add yoloseries doc, test=document_fix

* add modelzoo doc, test=document_fix

* update yoloseries doc, test=document_fix

* update release note, test=document_fix

* update README, test=document_fix

* update overview, test=document_fix

* update en doc, test=document_fix

* add ocsort, test=document_fix

* add en doc & update yoloseries, test=document_fix

* update readme, test=document_fix

* ppvehicle tutorials template

* rename pphuman docs

* update quickstart

* optimize lite doc

* add tinypose-enhance doc

* add coco result and rename picodet-model

* add flops & params

* update Q-code image for poseapp

* update human gif & qrcode, test=document_fix

* update link, test=document_fix

* update ppdet docs & remove static code, test=document_fix

* add pphuman doc, test=document_fix

* update action doc, test=document_fix

* update activity, test=document_fix

* add fight recognition docs

* add fight recognition tool file : split_fight_train_test_dataset.py

* fight recognition quick start and develop documents

* add solution selection table for action recognition.

* add fight recognition case AI Studio link

* refactor doc, test=document_fix

* update yolox & yolov5, test=document_fix

* Update README_cn.md

* update doc, test=document_fix

* Update readme and pphuman readme

* Update README.md

* add data & customize, test=document_fix

* update readme

* Update README_cn.md

* Update README_cn.md

* add template, test=document_fix
Co-authored-by: NYixinKristy <576550767@qq.com>

* update readme

* Update README_cn.md

* Update README_cn.md

* change the link

* Update README_cn.md

* update issue template, test=document_fix

* update template, test=document_fix

* add chinese label, test=document_fix

* Update README_cn.md

* Update README_cn.md

* Update README_en.md

* update doc, test=document_fix

* update doc, test=document_fix

* update changelog, test=document_fix

* update readme model, test=document_fix

* update_activity_doc

* update doc, test=document_fix

* Update Readme

* Update README_cn.md

* Update .gitignore

* Update README_cn.md

* Revert "Update .gitignore"

This reverts commit f26a86fe.

* Update README_cn.md

* added OpenVINO fairmort tutorial

* added Chinese version Readme.

* removed unused code

* fix table in README

* update table

* fix format

* polish

* polish