Revert README.md to main (drop YAML configs change from PR)

VANTAGE-Bench update: prompts + question-only annotations + Vantage2DPointing rename + test split + data/README + CHANGELOG

Point License section to LICENSE.md in dataset

Remove paper citation TBD reminder

Move task overview figure from Dataset Description to References

Add markdown LICENSE and point license_link to LICENSE.md

Update dataset card with task overview figure and HF link

Update review comments

Update README.md

initial commit