Replace YAML keys from int to str (#1)

- Replace YAML keys from int to str (f0df802ae6cdacfe0b29ae41bef300383b883126)

README.md

@@ -27,11 +27,11 @@ dataset_info:
     dtype:
       class_label:
         names:
-          0: '1'
-          1: '2'
-          2: '3'
-          3: '4'
-          4: '5'
+          '0': '1'
+          '1': '2'
+          '2': '3'
+          '3': '4'
+          '4': '5'
   config_name: plain_text
   splits:
   - name: train