Replace YAML keys from int to str

Replace YAML metadata integer keys with strings, as the Hub does not support integers.
See: https://github.com/huggingface/datasets/issues/5275

README.md

@@ -17,7 +17,6 @@ task_categories:
 - text-classification
 task_ids:
 - fact-checking
-paperswithcode_id: null
 pretty_name: Clickbait/Fake News in Bulgarian
 dataset_info:
   features:
@@ -25,14 +24,14 @@ dataset_info:
     dtype:
       class_label:
         names:
-          0: legitimate
-          1: fake
+          '0': legitimate
+          '1': fake
   - name: click_bait_score
     dtype:
       class_label:
         names:
-          0: normal
-          1: clickbait
+          '0': normal
+          '1': clickbait
   - name: content_title
     dtype: string
   - name: content_url