Python 2 support ends in less than 1 year

[texadactyl]

https://pythonclock.org/

But, fear not. The EightBitTransit code works just fine with Python 3. Only the example Jupyter project file code, examples.ipynb, needs simple tweaks:

Replace
     print x
with
     print(x)

That change runs on Python 2 or 3.

The only other change is to README.md:

Replace or add verbiage explaining when to use
     python3
instead of
     python