Ready for launch!

Since it is the Beta version, I fully commented the code so I could pick up on it another time without forgetting. To release the beta, I put it up on itch.io to download, as well as updated the README on GitHub so that all the non-mentioned setup could be explained to anyone wanting to give it a go! Also made a bit of banner art and icon art, a style i will pick up again to try to integrate into the game itself. Hopefully I will find the time to dedicate myself to this once again, and thank you Stardance!