Remove config names as yaml keys (#4367)

* validate YAML part

* fix bad YAML keys

* don't have config names as yaml keys

* style

* Remove hacking license tags when mirroring datasets on the Hub

* fix test

* fix style

* more fixes

* remove dots in QA column mapping keys

Commit from https://github.com/huggingface/datasets/commit/3f3013441e4af9bf4efa752b5e6e184a588b7a80

README.md

@@ -11,14 +11,8 @@ licenses:
 multilinguality:
 - monolingual
 size_categories:
-  kinnews_cleaned:
-  - 10K<n<100K
-  kinnews_raw:
-  - 10K<n<100K
-  kirnews_cleaned:
-  - 1K<n<10K
-  kirnews_raw:
-  - 1K<n<10K
+- 10K<n<100K
+- 1K<n<10K
 source_datasets:
 - original
 task_categories:
@@ -28,6 +22,11 @@ task_ids:
 - topic-classification
 paperswithcode_id: kinnews-and-kirnews
 pretty_name: KinnewsKirnews
+configs:
+- kinnews_cleaned
+- kinnews_raw
+- kirnews_cleaned
+- kirnews_raw
 ---
 # Dataset Card for kinnews_kirnews