Version 1.2.1

[SW]

- added function, for change blink interval, if is jumper set. Function for this featchure is CheckBlinkIntervalJumper. But if is this function enabled in main.c, then must be definition EEPROM_ENABLE set to 0

Version 1.2

Version_1.2

Update README.md

Version 1.1

Fix HW pinout

Fix SW pinout
add documentation for AVR dragon