Create github page with space_editor examples for demonstration

[rewin123]

Create space_editor wasm demonstration page (like in bevy website, but just based on gihub pages or I can host server)

[naomijub]

Sounds like an interesting idea, should we fix the examples first?

We don't have any external server dependencies, so this might be doable. Also, would be cool to have a live documentation/guide going on there, like bevy does. I don't really know how to have both of them working together.

[rewin123]

examples were fixed before tagging 0.5 🙃

[rewin123]

What is live documentation? 😅

[naomijub]

What is live documentation? 😅

Bevy examples are live documentation as well as rust docs.rs when you execute rust code in the docs. This helps keeps docs up to date