Update DiaBLa.py

DiaBLa.py

@@ -77,7 +77,7 @@ class Diabla(datasets.GeneratorBasedBuilder):
             # No default supervised_keys (as we have to pass both question
             # and context as input).
             supervised_keys=None,
-            homepage='https://github.com/rbawden/DiaBLa-dataset'
+            homepage='https://github.com/rbawden/DiaBLa-dataset',
             citation=_CITATION,
             task_templates=[
                 # TODO