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

@@ -61,18 +61,18 @@ dataset_info:
           12: I-PRO
   config_name: finer
   splits:
-  - name: test
-    num_bytes: 1327354
-    num_examples: 3512
-  - name: test_wikipedia
-    num_bytes: 1404397
-    num_examples: 3360
   - name: train
     num_bytes: 5159550
     num_examples: 13497
   - name: validation
     num_bytes: 387494
     num_examples: 986
+  - name: test
+    num_bytes: 1327354
+    num_examples: 3512
+  - name: test_wikipedia
+    num_bytes: 1404397
+    num_examples: 3360
   download_size: 3733127
   dataset_size: 8278795
 ---