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

@@ -44,15 +44,15 @@ dataset_info:
           12: I-JURISPRUDENCIA
   config_name: lener_br
   splits:
-  - name: test
-    num_bytes: 823708
-    num_examples: 1390
   - name: train
     num_bytes: 3984189
     num_examples: 7828
   - name: validation
     num_bytes: 719433
     num_examples: 1177
+  - name: test
+    num_bytes: 823708
+    num_examples: 1390
   download_size: 2983137
   dataset_size: 5527330
 ---