Add medians to scoreboard headers

[nvdaydreamer]

Hi! Thank you for this.

Please consider adding median guess count and median time values to the headers of those scoreboard columns. This would make it easy for players to see at a glance how they've done relative to all the others who played before them.

This could be just like the player count (which is in parentheses next to the header for the Name column).

I suppose it could be average guess count and time. Whatever is easier to extract.

Thank you again!