using a dsn closer to real world

Author: Matt George

README.md

@@ -15,7 +15,7 @@ DSN format is simpilar to that of regular postgres:
 
 	from sqlalchemy import create_engine
 
-	engine = create_engine("redshift+psycopg2://username@localhost:5439/database"
+	engine = create_engine("redshift+psycopg2://username@host.amazonaws.com:5439/database"
 
 Notes
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