add dataset_info in dataset metadata

Remove "unkown" language tags (#4754)

Align/fix license metadata info (#4613)

Remove config names as yaml keys (#4367)

Remove a copy-paste sentence in dataset cards (#4281)

Update datasets task tags to align tags with models (#4067)

Update Wikipedia metadata (#3958)

Release: 2.0.0

Update files from the datasets library (from 1.16.0)

Update files from the datasets library (from 1.8.0)

Update files from the datasets library (from 1.7.0)

Update files from the datasets library (from 1.4.0)

Update files from the datasets library (from 1.3.0)

initial commit