Update README.md

Update README.md

Update README.md

Update README.md

Update README.md

Update README.md

Update README.md

Remove splits block (num_examples=-1 causes UnexpectedError mismatch)

Fix data_files path: corpora/ -> data/corpora/ to match actual upload structure

Update README.md

Update README.md

Add README with explicit YAML schema to fix DatasetGenerationError (matched_pair_id string vs null)

initial commit