Baiduyun dataset file wrong annotation

Hi,
I found a wrong annotation in FaceMaskDataet/val/test_00000306.xml.
where face_mask is noted as face_nask, it's just a small typo.

您好
我在您提供的百度云数据集测试集的test_00000306.xml中发现了一处标注错误，目标种类被误标为‘face_nask’