Reorder split names

README.md

@@ -35,12 +35,12 @@ dataset_info:
           1: pos
   config_name: plain_text
   splits:
-  - name: test
-    num_bytes: 3246243
-    num_examples: 2224
   - name: train
     num_bytes: 29496333
     num_examples: 20028
+  - name: test
+    num_bytes: 3246243
+    num_examples: 2224
   - name: unsupervised
     num_bytes: 152733031
     num_examples: 96264