Reorder split names

Reorder split names in the YAML metadata to be aligned with the order in the loading script.
See: https://github.com/huggingface/datasets/issues/5258

README.md

@@ -38,15 +38,15 @@ dataset_info:
     dtype: string
   config_name: CSRestaurants
   splits:
-  - name: test
-    num_bytes: 191334
-    num_examples: 842
   - name: train
     num_bytes: 654071
     num_examples: 3569
   - name: validation
     num_bytes: 181528
     num_examples: 781
+  - name: test
+    num_bytes: 191334
+    num_examples: 842
   download_size: 1463019
   dataset_size: 1026933
 ---