Fix structure section: subjects are top-level W{n}/

README.md

@@ -131,15 +131,15 @@ LPS orientation. One pre-operative study per subject.
 
 ## Structure
 ```
-data/
-  W{n}/
-    W{n}_t1.nii.gz       # native T1
-    W{n}_t1c.nii.gz      # post-contrast T1 (T1-Gd; original token "t1gd")
-    W{n}_t2.nii.gz       # T2
-    W{n}_flair.nii.gz    # T2-FLAIR
-    W{n}_seg-UPenn.nii.gz   # UPenn expert mask (all 34 subjects)
-    W{n}_seg-CWRU.nii.gz    # CWRU expert mask (31 subjects)
+W{n}/                           # one folder per subject, at the repo root
+  W{n}_t1.nii.gz                # native T1
+  W{n}_t1c.nii.gz               # post-contrast T1 (T1-Gd; original token "t1gd")
+  W{n}_t2.nii.gz                # T2
+  W{n}_flair.nii.gz             # T2-FLAIR
+  W{n}_seg-UPenn.nii.gz         # UPenn expert mask (all 34 subjects)
+  W{n}_seg-CWRU.nii.gz          # CWRU expert mask (31 subjects)
 atlas/spgr_unstrip_lps.nii.gz   # SRI24 reference template
+data/test-*.parquet             # Dataset Viewer preview only (rendered slices + metadata)
 radiomic_features/              # CaPTk/IBSI features per rater, feature parameters, reproducibility correlations
 ivygap_metadata.csv             # per-subject clinical & molecular metadata (see below)
 subject_study_dates.csv         # subject -> original study date + which rater masks exist