Update blinky.py
Update blinky.py

Added header comments.
MerbokIT/RaspberryPi-FullStack_new,futureshocked/RaspberryPi-FullStack,futureshocked/RaspberryPi-FullStack,merbok/RaspberryPi-FullStack,futureshocked/RaspberryPi-FullStack,futureshocked/RaspberryPi-FullStack,merbok/RaspberryPi-FullStack,MerbokIT/RaspberryPi-FullStack_new,futureshocked/RaspberryPi-FullStack