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

@@ -1089,12 +1089,12 @@ dataset_info:
           1053: recycling_plant_outdoor
           1054: chuck_wagon
   splits:
-  - name: test
-    num_bytes: 744607
-    num_examples: 3352
   - name: train
     num_bytes: 8468086
     num_examples: 20210
+  - name: test
+    num_bytes: 744607
+    num_examples: 3352
   - name: validation
     num_bytes: 838032
     num_examples: 2000
@@ -1107,12 +1107,12 @@ dataset_info:
   - name: annotation
     dtype: image
   splits:
-  - name: test
-    num_bytes: 212493928
-    num_examples: 3352
   - name: train
     num_bytes: 862611544
     num_examples: 20210
+  - name: test
+    num_bytes: 212493928
+    num_examples: 3352
   - name: validation
     num_bytes: 87502294
     num_examples: 2000