Update README.md

Update README: fix schema section for Parquet format

Update README: switch configs to Parquet paths

fix: d7b point config to push_to_hub parquet, remove stale test.parquet

fix: d7b push dual-audio parquet via push_to_hub

fix: d7b — pre-built parquet with audio + audio_ref as dual Audio columns

Upload README.md with huggingface_hub

Upload README.md with huggingface_hub

Upload README.md with huggingface_hub

fix: use *.wav path to trigger audiofolder mode

fix: point data_files to metadata.jsonl for audiofolder viewer

Add files using upload-large-folder tool

Add files using upload-large-folder tool

Fix dataset viewer config: glob */* and valid task_category

Add files using upload-large-folder tool