Please un-gitignore test scenes and upload

[Correct-Syntax]

Hi, this looks like a neat project -not something I've seen before. :)

Your README says

Run python3 main.py. Go to File -> Open and open one of the example scenes (e.g. scenes/LemonadeCollage.json).

However this is not possible because the repository doesn't have that folder. I think it is because you have the scenes and data folders specified in your .gitignore file so that they are not uploaded to Github.

Could you please upload those sample scenes so that I could try out your neat-looking project? Thanks.