GitLab

* creat kitti_det.md

* Update kitti_det.md

* modify kitti_det

* add metrics

* modified readme

* modified readme

* modified readme

* modify kitti_det

* modify docs

* modify kitti_det

* modify docs

* modify docs

* location is bottom center

* fix typo

* fix typo

* fix typo
Co-authored-by: 刘曦 <xiliu8006@gmail.com>
Co-authored-by: xiliu8006 <75658786+xiliu8006@users.noreply.github.com>