Delete legacy JSON metadata (#1)

add dataset_info in dataset metadata

remove dummmy data

fix task_ids

Add `language_bcp47` tag (#4753)

Align more metadata with other repo types (models,spaces) (#4607)

Fix invalid url to CC-Aligned dataset (#4231)

Update files from the datasets library (from 1.18.0)

Update files from the datasets library (from 1.9.0)

Update files from the datasets library (from 1.7.0)

Update files from the datasets library (from 1.6.1)

Update files from the datasets library (from 1.6.0)

Update files from the datasets library (from 1.4.0)