added empty line at end of file

Author: negust-microsoft

samples/features/machine-learning-services/python/getting-started/customer-clustering/customer_clustering.sql

@@ -101,4 +101,5 @@ SELECT customer.[c_email_address], customer.c_customer_sk
   JOIN
   [dbo].[py_customer_clusters] as c
   ON c.Customer = customer.c_customer_sk
-  WHERE c.cluster = 0;
+  WHERE c.cluster = 0;
+