modify class name to match convention

vaw.py

@@ -67,7 +67,7 @@ _URLS = {
 
 
 # TODO: Name of the dataset usually matches the script name with CamelCase instead of snake_case
-class NewDataset(datasets.GeneratorBasedBuilder):
+class VAW(datasets.GeneratorBasedBuilder):
     """TODO: Short description of my dataset."""
 
     VERSION = datasets.Version("1.0.0")