Better description for signup flag
Better description for signup flag

nicola/ldnode,nicola/ldnode,evWork/nds-server,evWork/nds-server,evWork/nds-server,linkeddata/ldnode,dmitrizagidulin/solid-server-unstable,dmitrizagidulin/solid-server-unstable,dmitrizagidulin/solid-server-unstable,linkeddata/ldnode