Co-authored-by: Nwuzewu <wuzewu@baidu.com>
Co-authored-by: NZeyu Chen <chenzeyu01@baidu.com>

* fix a bug, embedding result is a tensor, unpacking error

* fix a bug, embedding result is a tensor, unpacking error.

* doc format

* fix chinese_electra_small README.md

* fix electra model version case
Co-authored-by: Nwuzewu <wuzewu@baidu.com>

Update pretained model name for ernie_v2_eng_base

fix pp-tinypose readme

update pp_tinypose

add pp_tinypose

add ppocr module