Fix full dataset README metadata

README.md

@@ -8,9 +8,15 @@ tags:
 - visual-goal-conditioning
 ---
 
-# Placement Yellow-Dot Red-Arrow Sanity Dataset
+# Placement Yellow-Dot Red-Arrow HDF5 Metadata Dataset
 
-This is a one-episode LeRobot-format sanity export derived from local HDF5 placement data.
+This is a LeRobot-format full dataset export derived from local HDF5 placement data.
+
+Dataset size:
+
+- episodes: 197
+- frames: 66397
+- videos: 591
 
 Instruction:
 
@@ -23,4 +29,3 @@ The overhead video is rendered from the raw HDF5 overhead camera frame with an a
 
 No green-pixel detection is used. The 1280x800 source image is mapped to a 224x140 view with 42 px vertical padding inside the 224x224 LeRobot video frame.
 
-This repo is intended for visual and format sanity checking before exporting the full dataset.