Switch team upload flow to pull requests

README.md

@@ -32,18 +32,20 @@ hf download YY222/bench --repo-type dataset --local-dir test_data
 python3 scripts/asset/download_assets.py
 ```
 
-## Upload (team collaborators)
+## Upload (team, via pull requests)
 
-Members with collaborator (Write) access push their own G-numbers from the bench repo
-(ask the owner on this dataset's Settings page for access):
+The dataset is read-only for the team: members run the upload script from the bench
+repo, it opens a pull request, and the owner merges it. Any logged-in HF account
+works (`hf auth login` with the member's own token) — no special access needed:
 
 ```bash
 python3 scripts/asset/upload_assets.py --dry-run          # what would be uploaded
-python3 scripts/asset/upload_assets.py --games G011,G013  # push specific games only
+python3 scripts/asset/upload_assets.py --games G011,G013  # open a PR for specific games
 ```
 
 Only games containing real artifacts are uploaded (skeleton-only games are skipped),
-and uploads on disjoint games are safe to run concurrently.
+and uploads on disjoint games are safe to run concurrently. Direct pushes to main
+are owner-only.
 
 ## Notes