update placeholder text with new terminology
update placeholder text with new terminology

Signed-off-by: Adam Cox <707ea0bf03a27b65588fdaa75978c372c1033476@gmail.com>

cvast/arches,cvast/arches,archesproject/arches,archesproject/arches,cvast/arches,archesproject/arches,cvast/arches,archesproject/arches