Add spacellava train dataset

README.md

@@ -19,13 +19,13 @@ dataset_info:
   - name: source
     dtype: string
   splits:
-  - name: train
-    num_bytes: 123592420
-    num_examples: 170714
   - name: val
     num_bytes: 10020289
     num_examples: 13804
-  download_size: 34789068
+  - name: train
+    num_bytes: 123592420
+    num_examples: 170714
+  download_size: 64746426
   dataset_size: 133612709
 configs:
 - config_name: spacellava