Update dataset card after external splits upload: data/README.md

data/README.md

@@ -1,17 +1,20 @@
 # Data Shards
 
-Placeholder directory for full-resolution Parquet shards.
+This directory contains the currently published full-resolution Parquet shards.
 
-Expected patterns:
+Current uploaded patterns:
+
+```text
+external_waveplate-*.parquet    # 18 rows, 633 nm waveplate
+external_spectral_610-*.parquet # 165 rows
+external_spectral_650-*.parquet # 165 rows
+external_spectral_690-*.parquet # 165 rows
+```
+
+Planned but not yet uploaded:
 
 ```text
 train-*.parquet                 # healthy_bone_cell
 validation-*.parquet            # healthy_bone_cell
 test-*.parquet                  # healthy_bone_cell
-external_waveplate-*.parquet    # generated pilot: 18 rows, 633 nm waveplate
-external_spectral_610-*.parquet # generated pilot: 165 rows
-external_spectral_650-*.parquet # generated pilot: 165 rows
-external_spectral_690-*.parquet # generated pilot: 165 rows
 ```
-
-TODO: Replace this placeholder with generated Parquet shards.