testing (#1)

Correct the compressing file to correct data(without redudant hirarchy

Fix bug in developer_README.md

rename developer_README.md to contributor_README.md

Update unzipping.sh developer_README.md

Add zipped file hirarchy and the zipped files

Add tags on dataset card

Add tags on dataset card

Add tags on dataset card

Add dataset card template

Enable dataset download, not yet finishing the nesting enumerating of folders

Add testing data data.tar.gz

Update building script

add building script(unfinished)

initial commit