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

@@ -6,8 +6,6 @@ language_creators:
 - found
 language:
 - sv
-language_bcp47:
-- sv-SE
 license:
 - cc-by-sa-4.0
 multilinguality:
@@ -21,6 +19,8 @@ task_categories:
 task_ids:
 - named-entity-recognition
 pretty_name: SwedMedNER
+language_bcp47:
+- sv-SE
 dataset_info:
 - config_name: wiki
   features:
@@ -40,9 +40,9 @@ dataset_info:
       dtype:
         class_label:
           names:
-            0: Disorder and Finding
-            1: Pharmaceutical Drug
-            2: Body Structure
+            '0': Disorder and Finding
+            '1': Pharmaceutical Drug
+            '2': Body Structure
   splits:
   - name: train
     num_bytes: 7044714
@@ -67,9 +67,9 @@ dataset_info:
       dtype:
         class_label:
           names:
-            0: Disorder and Finding
-            1: Pharmaceutical Drug
-            2: Body Structure
+            '0': Disorder and Finding
+            '1': Pharmaceutical Drug
+            '2': Body Structure
   splits:
   - name: train
     num_bytes: 97955287
@@ -94,9 +94,9 @@ dataset_info:
       dtype:
         class_label:
           names:
-            0: Disorder and Finding
-            1: Pharmaceutical Drug
-            2: Body Structure
+            '0': Disorder and Finding
+            '1': Pharmaceutical Drug
+            '2': Body Structure
   splits:
   - name: train
     num_bytes: 159007