Typo in the README

[Ray Suhyun Lee]

Hi. Thank you for your effort.

In line 176 and 179 of README.md, it seems like the script file name is miswritten.

Shouldn't these

python test_widerface.py.py --cfg_path="./configs/retinaface_res50.yaml" --gpu=0
python test_widerface.py.py --cfg_path="./configs/retinaface_res50.yaml" --gpu=0

changed to these? (.py.py -> .py)

python test_widerface.py --cfg_path="./configs/retinaface_res50.yaml" --gpu=0
python test_widerface.py --cfg_path="./configs/retinaface_res50.yaml" --gpu=0

[Kuan-Yu Huang (Peter)]

@RaySuhyunLee, Thanks for your help! =)