Update discovery.py

Replace YAML keys from int to str (#5)

Remove metrics tags from train-eval-index (#3)

Add train-eval-index tag to metadata (#2)

Reorder split names (#1)

add dataset_info in dataset metadata

remove dummmy data

fix task_ids

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

Remove config names as yaml keys (#4367)

Update files from the datasets library (from 1.18.0)

Update files from the datasets library (from 1.7.0)

Update files from the datasets library (from 1.6.0)

Update files from the datasets library (from 1.5.0)

Update files from the datasets library (from 1.3.0)

Update files from the datasets library (from 1.2.0)