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

@@ -41,33 +41,33 @@ dataset_info:
     dtype: string
   config_name: plain_text
   splits:
+  - name: train_r1
+    num_bytes: 8006920
+    num_examples: 16946
   - name: dev_r1
     num_bytes: 573444
     num_examples: 1000
-  - name: dev_r2
-    num_bytes: 556082
-    num_examples: 1000
-  - name: dev_r3
-    num_bytes: 663164
-    num_examples: 1200
   - name: test_r1
     num_bytes: 574933
     num_examples: 1000
-  - name: test_r2
-    num_bytes: 572655
-    num_examples: 1000
-  - name: test_r3
-    num_bytes: 657602
-    num_examples: 1200
-  - name: train_r1
-    num_bytes: 8006920
-    num_examples: 16946
   - name: train_r2
     num_bytes: 20801661
     num_examples: 45460
+  - name: dev_r2
+    num_bytes: 556082
+    num_examples: 1000
+  - name: test_r2
+    num_bytes: 572655
+    num_examples: 1000
   - name: train_r3
     num_bytes: 44720895
     num_examples: 100459
+  - name: dev_r3
+    num_bytes: 663164
+    num_examples: 1200
+  - name: test_r3
+    num_bytes: 657602
+    num_examples: 1200
   download_size: 18621352
   dataset_size: 77127356
 ---