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

@@ -1,15 +1,14 @@
 ---
 annotations_creators:
 - crowdsourced
-language:
-- en
 language_creators:
 - found
+language:
+- en
 license:
 - other
 multilinguality:
 - monolingual
-pretty_name: Eraser MultiRC (Multi-Sentence Reading Comprehension)
 size_categories:
 - 10K<n<100K
 source_datasets:
@@ -18,7 +17,7 @@ task_categories:
 - multiple-choice
 task_ids:
 - multiple-choice-qa
-paperswithcode_id: null
+pretty_name: Eraser MultiRC (Multi-Sentence Reading Comprehension)
 dataset_info:
   features:
   - name: passage
@@ -29,8 +28,8 @@ dataset_info:
     dtype:
       class_label:
         names:
-          0: 'False'
-          1: 'True'
+          '0': 'False'
+          '1': 'True'
   - name: evidences
     sequence: string
   splits: