Added avr-gcc version used

Author: sngl

readme.md

@@ -1,6 +1,7 @@
-ArduinoISP firwmare sources:
+!ArduinoISP firwmare sources:
 
-To compile sources you need avr-gcc.
+To compile sources you need avr-gcc (the binary files provided are compiled with avr-gcc 4.5.3).
+
 You also need an AVRISP mkII programmer to write the firwmare into the device. If you want to use another programmer you have to modify the makefile and change the command line for avrdude in order to match your programmer.
 Just move into the code folder with the terminal and use: