feat: include D11

internal/2015/register.go

@@ -2,6 +2,7 @@ package year2015
 
 import (
 	_ "advent-of-code/internal/2015/DayEight"
+	_ "advent-of-code/internal/2015/DayEleven"
 	_ "advent-of-code/internal/2015/DayFive"
 	_ "advent-of-code/internal/2015/DayFour"
 	_ "advent-of-code/internal/2015/DayNine"