bisturi timetable: 2 edits in 1 file(s)

bisturi timetable: 2 edits in 1 file(s): a task in bisturi-harbor (Harbor dataset). In hours.md , in the table, row “Saturday”, column “Opens”, replace “10:00” with “09:30” and in the “Friday” row of the table set the “Closes” column to “19:30”. Do not touch any other line or file.