Readme with screenshots for samples

[shaunroselt]

I thought it would be a nice addition if you can see how the samples look without needing to download and run the code yourself.

So I created a readme file in the samples folder with screenshots for some of the samples.

[shaunroselt]

Here are example screenshots of how it would look if you open the samples folder now:

Personally, this looks much better in my opinion now that you can instantly see some of the samples in terms of how they look.

[lmbelo]

Nice work, @shaunroselt. Thanks!