Revert "update docs"
Revert "update docs"

This reverts commit c41e138c3f03c6878ec28acee8cf1ed5e59ba6ff.

cuhkshenzhen/CUHKSZLib,alesiong/CUHKSZLib,Yexiaoxing/CUHKSZLib,cuhkshenzhen/CUHKSZLib,Yexiaoxing/CUHKSZLib,alesiong/CUHKSZLib,cuhkshenzhen/CUHKSZLib,Yexiaoxing/CUHKSZLib,alesiong/CUHKSZLib