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

@@ -46,15 +46,15 @@ dataset_info:
   - name: answers
     dtype: string
   splits:
-  - name: test
-    num_bytes: 219046
-    num_examples: 2499
   - name: train
     num_bytes: 1698662
     num_examples: 15250
   - name: validation
     num_bytes: 259533
     num_examples: 2110
+  - name: test
+    num_bytes: 219046
+    num_examples: 2499
   download_size: 3702288
   dataset_size: 2177241
 - config_name: xor-full
@@ -75,15 +75,15 @@ dataset_info:
   - name: answers
     dtype: string
   splits:
-  - name: test
-    num_bytes: 706664
-    num_examples: 8176
   - name: train
     num_bytes: 7250913
     num_examples: 61360
   - name: validation
     num_bytes: 444672
     num_examples: 3473
+  - name: test
+    num_bytes: 706664
+    num_examples: 8176
   download_size: 14018298
   dataset_size: 8402249
 ---