Update 2_dataset_prepare.md: adding link source#850
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ouyanglinke wants to merge 1 commit intoopen-mmlab:dev-1.xfrom
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Update 2_dataset_prepare.md: adding link source#850ouyanglinke wants to merge 1 commit intoopen-mmlab:dev-1.xfrom
ouyanglinke wants to merge 1 commit intoopen-mmlab:dev-1.xfrom