For long routes, make it clear how many jumps are still to be populated.

[joncage]

See suggestion here: https://github.com/joncage/ed-scout/issues/22#issuecomment-675167365

The route is printed between two lines, and for long ones it's not obvious when the route is done. Either don't print the bottom line until the plot is finished to indicate it's done, or alternatively have the last star, the destination be labeled like you label the current location in its own heading.