* update multi rec model

* fix pdserving for det

* rename multi config

* update ch_rec_slim link

Update joinus.png

* [cherry-pick] Fix some typos from release/2.4 branch and merge.

* rm readme_en.md in deploy/cpp_infer/.

* Fix others typos.

[cherry-pick] `Fix some typos for Jetson, metrics and result` from release/2.4-typos2 branch and merge. (#6119)

* [cherry-pick] Fix some typos for Jetson, metrics and result from release/2.4-typos2 branch and merge.