Update chronometer.sh

What, me? Reference the wrong file?

advanced/Scripts/chronometer.sh

@@ -111,7 +111,7 @@ function normalChrono(){
 function displayHelp(){
  echo "Displays stats about your piHole!"
     echo " "
-    echo "Usage: whitelist.sh [optional:-j]"
+    echo "Usage: chronometer.sh [optional:-j]"
     echo "Note: If no option is passed, then stats are displayed on screen, updated every 5 seconds
     echo "  "
     echo "Options:"
@@ -132,4 +132,4 @@ do
     "-h" | "--help"  ) displayHelp;;        			
     *                ) exit 1;;
   esac
-done
+done