Add missing \r in I2C scanner

I2cScanner/I2cScanner.ino

@@ -34,7 +34,7 @@ void setup()
 	
 	Serial.begin(9600);
 	while (!Serial);             // Leonardo: wait for serial monitor
-	Serial.println("\nI2C Scanner");
+	Serial.println("\r\nI2C Scanner");
 }