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

@@ -1,5 +1,4 @@
 ---
-pretty_name: ASSIN
 annotations_creators:
 - expert-generated
 language_creators:
@@ -21,6 +20,7 @@ task_ids:
 - natural-language-inference
 - semantic-similarity-scoring
 paperswithcode_id: assin
+pretty_name: ASSIN
 dataset_info:
 - config_name: full
   features:
@@ -36,9 +36,9 @@ dataset_info:
     dtype:
       class_label:
         names:
-          0: NONE
-          1: ENTAILMENT
-          2: PARAPHRASE
+          '0': NONE
+          '1': ENTAILMENT
+          '2': PARAPHRASE
   splits:
   - name: train
     num_bytes: 986507
@@ -65,9 +65,9 @@ dataset_info:
     dtype:
       class_label:
         names:
-          0: NONE
-          1: ENTAILMENT
-          2: PARAPHRASE
+          '0': NONE
+          '1': ENTAILMENT
+          '2': PARAPHRASE
   splits:
   - name: train
     num_bytes: 523002
@@ -94,9 +94,9 @@ dataset_info:
     dtype:
       class_label:
         names:
-          0: NONE
-          1: ENTAILMENT
-          2: PARAPHRASE
+          '0': NONE
+          '1': ENTAILMENT
+          '2': PARAPHRASE
   splits:
   - name: train
     num_bytes: 463513