Update Example Mods

[ithinkandicode]

The examples are pretty outdated. Looks like they're doing some stuff that's been deprecated. And maybe our best practices have changed since those were made.

• https://github.com/GodotModding/godot-mod-loader-examples
• https://github.com/BrotatoMods/Brotato-Example-Mods

I've assigned the Documentation label cause this is kinda related to docs and tutorials?

[KANAjetzt]

There is a lot to do on the documentation front. Most of it should be tracked here.

• Documentation Updates #254