Missing reference link for the "stfu" rage thing.

[vicary]

Would like to know more coz I just think this is cool.

Porting the right portion of code into javascript just helps build both nodejs and pi community, and most important, makes more fun!

[rzr]

If anyone still care, there are a couple of links at:

https://youtu.be/klQdX8-YVaI

https://github.com/EnotionZ/GpiO