Changing schedule

Changing @taboege and @Scimon

Author: JJ

perl6advent-2018/schedule

@@ -20,8 +20,8 @@ I would please ask everyone to have their article ready at least one day in adva
 16: daotoad: Writing Command Line Tools in Perl6
 17: masak: Playing around with languages and compilation
 18: RabidGravy: Christmas Trees
-19: tobs: Propositional combinatorics in Perl 6
-20: Scimon: TBA
+19: Scimon: TBA
+20: tobs: Propositional combinatorics in Perl 6
 21: FCO: Red Secret Santa
 22: jnthn: TBA
 23: AlexDaniel: TBA