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

@@ -39,12 +39,12 @@ dataset_info:
           1: FAVOR
           2: NEUTRAL
   splits:
-  - name: test
-    num_bytes: 469204
-    num_examples: 2010
   - name: train
     num_bytes: 1406250
     num_examples: 6028
+  - name: test
+    num_bytes: 469204
+    num_examples: 2010
   - name: validation
     num_bytes: 473393
     num_examples: 2010
@@ -64,12 +64,12 @@ dataset_info:
           1: FAVOR
           2: NEUTRAL
   splits:
-  - name: test
-    num_bytes: 501783
-    num_examples: 2016
   - name: train
     num_bytes: 1507388
     num_examples: 6046
+  - name: test
+    num_bytes: 501783
+    num_examples: 2016
   - name: validation
     num_bytes: 505092
     num_examples: 2015