make tutorial work

tutorials/heatTransfer/chtMultiRegionFoam/multiRegionHeater/system/controlDict

@@ -15,7 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-startFrom       startTime;
+startFrom       latestTime;
 
 startTime       0.001;