Minor change on the usage of install_validation_pipeline.sh
Minor change on the usage of install_validation_pipeline.sh

Because https://xkcd.com/1179/

harrystech/arthur-redshift-etl,harrystech/arthur-redshift-etl,harrystech/arthur-redshift-etl,harrystech/arthur-redshift-etl,harrystech/arthur-redshift-etl