Merge pull request kodecocodes#907 from TRGoCPftF/Simulated-Annealing-Fix

Update simann_example.swift

Author: richard-ash

Simulated annealing/simann_example.swift

@@ -138,7 +138,7 @@ extension Tour {
   }
 
   func shuffle() {
-    self.shuffle()
+    self.tour.shuffle()
   }
 }