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

@@ -109,15 +109,15 @@ dataset_info:
           7: B-MISC
           8: I-MISC
   splits:
-  - name: test
-    num_bytes: 1294156
-    num_examples: 1518
   - name: train
     num_bytes: 6672173
     num_examples: 8324
   - name: validation
     num_bytes: 1333784
     num_examples: 1916
+  - name: test
+    num_bytes: 1294156
+    num_examples: 1518
   download_size: 4140690
   dataset_size: 9300113
 - config_name: nl
@@ -156,15 +156,15 @@ dataset_info:
           7: B-MISC
           8: I-MISC
   splits:
-  - name: test
-    num_bytes: 1808862
-    num_examples: 5196
   - name: train
     num_bytes: 5308959
     num_examples: 15807
   - name: validation
     num_bytes: 994298
     num_examples: 2896
+  - name: test
+    num_bytes: 1808862
+    num_examples: 5196
   download_size: 3642241
   dataset_size: 8112119
 ---