correction of the name of empty folder for installation in the Using NginX section
correction of the name of empty folder for installation in the Using NginX section

REGOVAR/Annso,REGOVAR/regovar-server,REGOVAR/Annso,REGOVAR/Annso,REGOVAR/Annso,REGOVAR/regovar-server,REGOVAR/regovar-server