Update README.md

README.md

@@ -36,7 +36,7 @@ Debug and Release .hex HAVE to be added seperately, below is an example for addi
 
 Things to note:
 * **USBasp** refers to the fact USBasp is the driver used for programming the avr based devices here.
-* **-P//./COM16** The comm port the device is attached to.
+* **-P//./COM16** The comm port the device is attached to _change this to comm port used on your device_.
 * **-patmega328p** The device programming to, the Arduino Pro Mini has an Atmega 328p.
 * **-carduino** The bootloader on the microcontroller, the default for the Arduino Pro Mini is -carduino. The Mega 2560 uses -cwiring.
 * **-b57600** The buad rate the **BOOTLOADER** runs at, the default for Arduino Pro Mini is 57600. The Mega 2560 uses 115200.