updated dataset card

afriberta.py → afriberta-corpus.py

@@ -57,7 +57,7 @@ _DATASET_URLS = {
     } for language in _LANGUAGES
 }
 
-class Afriberta(datasets.GeneratorBasedBuilder):
+class AfribertaCorpus(datasets.GeneratorBasedBuilder):
     BUILDER_CONFIGS = [
         datasets.BuilderConfig(
             version=datasets.Version(_VERSION),