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

@@ -7,7 +7,7 @@ language_creators:
 languages:
 - en
 licenses:
-- cc-by-4-0
+- cc-by-4.0
 multilinguality:
 - monolingual
 size_categories:
@@ -15,38 +15,21 @@ size_categories:
 source_datasets:
 - extended
 task_categories:
-  ecthr_a:
-  - text-classification
-  ecthr_b:
-  - text-classification
-  eurlex:
-  - text-classification
-  scotus:
-  - text-classification
-  unfair_tos:
-  - text-classification
-  ledgar:
-  - text-classification
-  case_hold:
-  - question-answering
+- question-answering
+- text-classification
 task_ids:
-  ecthr_a:
-  - multi-label-classification
-  ecthr_b:
-  - multi-label-classification
-  eurlex:
-  - multi-label-classification
-  - topic-classification
-  scotus:
-  - multi-class-classification
-  - topic-classification
-  ledgar:
-  - multi-class-classification
-  - topic-classification
-  unfair_tos:
-  - multi-label-classification
-  case_hold:
-  - multiple-choice-qa
+- multi-class-classification
+- multi-label-classification
+- multiple-choice-qa
+- topic-classification
+configs:
+- case_hold
+- ecthr_a
+- ecthr_b
+- eurlex
+- ledgar
+- scotus
+- unfair_tos
 ---
 
 # Dataset Card for "LexGLUE"