When the user types go [name of room], the current room should change.
You are in the starting room. A low hum comes from all around. You could go to:
-- arcade
-- garage
-- cave
> look
A low hum comes from all around.
> go cave
-- You are in the cave. Glittering jewels glow in the near-darkness.
> look.
Glittering jewels glow in the near-darkness.
When the user types
go [name of room], the current room should change.