TODO on Compiling page

[olevett]

Compiling page currently has a TODO for "provide overview of what each project does; document magic tricks" - we should totally do this, but I think an issue is a slightly clearer place to flag it up.

https://reactiveui.net/docs/getting-started/compiling/

I think the things worth flagging right now are

• What happens with ReactiveUI-Events and how it gets built
• Running unit tests
• What the split between the TargetPlatforms and completely separate packages (e.g. ReactiveUI.XamForms) are and why they have to be like that.

We've also got https://reactiveui.net/docs/getting-started/compiling/project-structure for a more detailed overview, which needs some extra details

[glennawatson]

We should probably move this compiling page into the contributor section of the website maybe?

[olevett]

Agreed, it's definitely not a "as a consumer of RxUI you should know..."