Update README.md

README.md

@@ -22,6 +22,7 @@ Our goal is to make video analysis easier for players, coaches, and teams by aut
 ## Dataset Structure
 * raw/: Contains unprocessed, full-length videos.
 * snippets/: Contains short clips, each representing 3 consecutive plays including downtime between plays.
+* metadata.json: Will contain every snippet and its source, type, date, camera_type, and snippet_index.
 * train.txt: List of train snippet file names
 * val.txt: List of validation snippet file names
 * test.txt: List of test snippet file names