Reorder split names

README.md

@@ -45,15 +45,15 @@ dataset_info:
   - name: hpqa_id
     dtype: string
   splits:
-  - name: test
-    num_bytes: 927513
-    num_examples: 4000
   - name: train
     num_bytes: 5532178
     num_examples: 18171
   - name: validation
     num_bytes: 1299252
     num_examples: 4000
+  - name: test
+    num_bytes: 927513
+    num_examples: 4000
   download_size: 12257835
   dataset_size: 7758943
 ---