CREDITS.txt in rufus-scheduler-2.0.22 vs CREDITS.txt in rufus-scheduler-2.0.23

@@ -2,9 +2,10 @@
 = CREDITS.txt
 
 
 == Contributors
 
+- Tobias Kraze (https://github.com/kratob) timeout vs mutex fix
 - Thomas Sevestre (https://github.com/thomassevestre) :exception option
 - Matteo Cerutti - last_time / previous_time idea (and initial implementation)
 - Aimee Rose (https://github.com/AimeeRose) cronline and > 24
 - Lucy Fu (https://github.com/lfu) arg error on <= 0 "every" freq
 - Rainux Luo (https://github.com/rainux) multiple mutexes