fix: drop License bullet + cleaner Schema label so sidebar parses cleanly

docs: add Dataset Description section so Repository link surfaces in HF sidebar

Add GitHub source badge + callout at top of card

Add Source Data section linking to GitHub repo

Add Background section, set author to Timothy Sum

Add swimming_resources.parquet (410 rows, v1.0.0)

Fix task_categories: information-retrieval -> text-retrieval

Add dataset card

initial commit