Replace YAML keys from int to str (#2)

- Replace YAML keys from int to str (5ae7ad04c16962876bf0827ec4ad4946802c9968)

README.md

@@ -30,9 +30,9 @@ dataset_info:
       dtype:
         class_label:
           names:
-            0: hatespeech
-            1: normal
-            2: offensive
+            '0': hatespeech
+            '1': normal
+            '2': offensive
     - name: annotator_id
       dtype: int32
     - name: target