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

@@ -42,15 +42,15 @@ dataset_info:
   - name: title
     dtype: string
   splits:
-  - name: ca_test
-    num_bytes: 14945291
-    num_examples: 1237
-  - name: test
-    num_bytes: 37866257
-    num_examples: 3269
   - name: train
     num_bytes: 219596090
     num_examples: 18949
+  - name: test
+    num_bytes: 37866257
+    num_examples: 3269
+  - name: ca_test
+    num_bytes: 14945291
+    num_examples: 1237
   download_size: 67260676
   dataset_size: 272407638
 ---