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:
-- agpl-3-0-or-later
+- agpl-3.0-or-later
 multilinguality:
 - monolingual
 size_categories:
@@ -17,15 +17,14 @@ source_datasets:
 task_categories:
 - text-classification
 task_ids:
-  binary:
-  - sentiment-classification
-  - text-classification-other-Hate Speech Detection
-  multilabel:
-  - multi-label-classification
-  - sentiment-classification
-  - text-classification-other-Hate Speech Detection
+- multi-label-classification
+- sentiment-classification
+- text-classification-other-Hate Speech Detection
 paperswithcode_id: ethos
 pretty_name: onlinE haTe speecH detectiOn dataSet
+configs:
+- binary
+- multilabel
 ---
 
 # Dataset Card for Ethos