Add UHRI policy link and change-notice caveat in Licence section

Fix licence: OHCHR data is freely shared without restriction, not CC BY 4.0

Update licence to CC BY-NC 4.0

Upload README.md with huggingface_hub

Upload data/train/train-0004-of-0004.parquet with huggingface_hub

Upload data/train/train-0003-of-0004.parquet with huggingface_hub

Upload data/train/train-0002-of-0004.parquet with huggingface_hub

Upload data/train/train-0001-of-0004.parquet with huggingface_hub

Upload data/train/train-0000-of-0004.parquet with huggingface_hub

initial commit