Update files from the datasets library (from 1.6.1)

Release notes: https://github.com/huggingface/datasets/releases/tag/1.6.1

setswana_ner_corpus.py

@@ -56,7 +56,7 @@ class SetswanaNerCorpusConfig(datasets.BuilderConfig):
 
 
 class SetswanaNerCorpus(datasets.GeneratorBasedBuilder):
-    """ Setswana Ner dataset"""
+    """Setswana Ner dataset"""
 
     BUILDER_CONFIGS = [
         SetswanaNerCorpusConfig(