Update README with proper YAML front matter for dataset splits

README.md

@@ -17,7 +17,7 @@ size_categories:
 language:
 - en
 
-# ↓↓↓ NEW: split-to-file mapping ↓↓↓
+# Dataset configurations - separate parquet and json files
 configs:
 - config_name: default
   data_files:
@@ -35,11 +35,15 @@ configs:
       path: "skeletal_muscle_10x_projection_X_umap.parquet"
     - split: projection_scvi
       path: "skeletal_muscle_10x_projection_X_scVI.parquet"
+
+- config_name: metadata_json
+  data_files:
     - split: unstructured_metadata
       path: "skeletal_muscle_10x_unstructured_metadata.json"
 ---
 
 
+
 # 🧬 Human Skeletal Muscle Aging Atlas - 10X Chromium Dataset
 
 > **A comprehensive single-cell RNA-seq atlas of human skeletal muscle aging across the lifespan (15-75 years)**