* Update Readme

* Update README_cn.md

* Update .gitignore

* Update README_cn.md

* Revert "Update .gitignore"

This reverts commit f26a86fe.

* update keypoint doc

* Update .gitignore

* Revert "Update .gitignore"

This reverts commit 44875dab.

* update keypoint readme

* Update README.md

* add complete deploy demo

* Update README_en.md

* Update README_en.md

* rename lite model tar name;
test=document_fix

* Update Readme_cn and Add Readme_en on 2.4  (#5500)

* Update README_cn.md

* Update Readme

* Update README_cn.md

* Update README_cn.md

* Update docs for PP-YOLOE (#5494) (#5495)

* [cherry-pick] fix test arch (#5504)

* [cherry-pick] update pphuman en doc, test=document_fix (#5507)

* update pphuman en doc, test=document_fix

* update doc

* add warnings and TestDataset dataset_dir

* remove cython_box and fix doc

* fix conflict, test=document_fix
Co-authored-by: Nzhiboniu <zhiboniu@163.com>
Co-authored-by: NYixinKristy <48054808+YixinKristy@users.noreply.github.com>
Co-authored-by: Nqingqing01 <dangqingqing@baidu.com>
Co-authored-by: Nwangguanzhong <jerrywgz@126.com>

* update picodet benchmark

* add ppyoloe docs, test=document_fix

* modify docs according to review and add map-fps png

* fix links

* modify ppyoloe docs, test=document_fix

* modify ppyoloe_map_fps png, test=document_fix

* add picodet new config

* add bytetrack yolov3 ppyoloe cfgs

* add bytetrack reid

* fix sde bytetrack reid

* fix bytetrack readme

* add jdetracker mtmct

* fix bytetrack reid

* fix deploy track_config

* fix doc readme

* support nms options when export model

* fix config

* fix deepsort detectors cfgs, add ppyoloe

* modify yolov3 40e

* add ppyoloe mot17half modelzoo

* add resnet embedding reid

* remove fasterfpn picodet, fix nms for higher MOTA

* add mot17 yml

* fix _base_ cfgs

* fix doc

* Add PP-YOLOE yaml

* rename PP-YOLOE

* Add exclude_nms in ppyoloe_head

* rename pretrain_weights

* add mcfiarmot ptq

* update docs

del json config & preprocess

* update mot data doc, test=document_fix

* update mot data doc link, test=document_fix

* add a new version code of PicoDet

* add mcfairmot 4 class vehicle with bytetracker

* update modelzoo, test=document_fix

* add implementation of RetinaNet

* * add README.md and model zoo
* rename FOCSFeat -> RetianFeat
* add mstrain model to model zoo
* refactor DeltaBBoxCoder

* update link for model and log