[How to do instruction] Python update

[jmperagine]

Python 3 is already on the moOde image. like @vinnn  mentioned there is prolly some config that has to be run to make Python 3 the default.

Code:

pi@moode:~ $ python3
Python 3.7.3 (default, Jul 25 2020, 13:03:44)
[GCC 8.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>

Yes, I see