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

@@ -10,17 +10,13 @@ languages:
 - fr
 - nl
 licenses:
-- cc0-1-0
+- cc0-1.0
 multilinguality:
 - multilingual
 pretty_name: British Library Books Genre
 size_categories:
-  title_genre_classifiction:
-  - 1K<n<10K
-  annotated_raw:
-  - 1K<n<10K
-  raw:
-  - 10K<n<100K
+- 10K<n<100K
+- 1K<n<10K
 source_datasets:
 - original
 task_categories:
@@ -32,6 +28,10 @@ task_ids:
 - multi-label-classification
 - language-modeling
 - masked-language-modeling
+configs:
+- annotated_raw
+- raw
+- title_genre_classifiction
 ---
 
 # Dataset Card for blbooksgenre