Simple code structure example

Hi all,

In the lecture today I mentioned that, if time, I wanted to discuss a short code structure example. Well, we ran out of time, but I've put the example on the GitHub repo here, along with a README.txt file that explains the point of this example.

We will discuss code structure much more when we start writing object oriented code, but already now it can be useful to see some examples of how you can structure your code to avoid too much code repetition.