fix data and update docstring
fix data and update docstring

leVirve/NTHU_Course,leVirve/NTHU_Course,henryyang42/NTHU_Course,henryyang42/NTHU_Course,leVirve/NTHU_Course,leVirve/NTHU_Course,henryyang42/NTHU_Course,henryyang42/NTHU_Course