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

@@ -76,12 +76,12 @@ dataset_info:
           45: ΕΜΠΟΡΙΚΗ ΝΑΥΤΙΛΙΑ
           46: ΣΥΝΤΑΓΜΑΤΙΚΗ ΝΟΜΟΘΕΣΙΑ
   splits:
-  - name: test
-    num_bytes: 71533786
-    num_examples: 9516
   - name: train
     num_bytes: 216757887
     num_examples: 28536
+  - name: test
+    num_bytes: 71533786
+    num_examples: 9516
   - name: validation
     num_bytes: 68824457
     num_examples: 9511
@@ -485,12 +485,12 @@ dataset_info:
           387: ΜΗΧΑΝΙΚΟΙ ΚΑΙ ΕΡΓΟΛΑΒΟΙ
           388: ΠΟΛΕΜΙΚΕΣ ΣΥΝΤΑΞΕΙΣ
   splits:
-  - name: test
-    num_bytes: 71533786
-    num_examples: 9516
   - name: train
     num_bytes: 216757887
     num_examples: 28536
+  - name: test
+    num_bytes: 71533786
+    num_examples: 9516
   - name: validation
     num_bytes: 68824457
     num_examples: 9511
@@ -2829,12 +2829,12 @@ dataset_info:
           2283: ΔΙΑΦΟΡΕΣ ΒΙΒΛΙΟΘΗΚΕΣ
           2284: ΚΕΝΤΡΙΚΗ ΥΠΗΡΕΣΙΑ
   splits:
-  - name: test
-    num_bytes: 71533786
-    num_examples: 9516
   - name: train
     num_bytes: 216757887
     num_examples: 28536
+  - name: test
+    num_bytes: 71533786
+    num_examples: 9516
   - name: validation
     num_bytes: 68824457
     num_examples: 9511