docs: name v1/v2 immutable tags in versions note

Add v2 notes

Clean province gold non-destructively: add province_clean + province_status (train 256 fixed/22 unknown, test 54 fixed/4 unknown; original province kept)

Upload dataset (#3)

Upload dataset (#2)

add extra details on export files

add original data and export script

update README

replace partial export with full export

fix typo

added more subtopics

add license and metadata

add dataset description

Update README.md

Upload exported_press_releases_2024.parquet

initial commit