Adding my slides as a working example to the learning resources

[KareimGazer]

Hi guys,

Thanks for this wonderful project.

I wanted to add my slides as a learning resource in the corresponding section. however, I can't find a section for example repos so I thought it maybe a good idea to ask first before submitting a PR.

Also, I can't find a contribution guide which is another issue.

The slides contain working examples of all existing features and add the use of the Python add-on to run code inside the slides, and the rabbit add-on to watch the time versus the current slide.

Thanks again,
Kareim