wip - playing with a keystatic-based examples explorer

[kennedybaird]

This is an idea for managing part of the examples with keystatic (just a rough quick example).

It would use/manage the README.md file for each example and adds the ability to define a preview file, and select related docs.

It has some important notes:

1. It needs to add a .yaml file in each dir - which could be confusing for end users (side note: maybe those files should have a commented #keystatic file at the start of them?)
2. The examples would need to move to docs/examples as keystatic can't access the dir above (or keystatic needs to move to the project root, but I don't think that's appropriate)

What I like about this:

• allows to customise the examples viewing experience on the website, whilst respecting the example files as the main source of truth
• selecting related docs seems useful
• using tags could allow for building a more robust explorer

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[kennedybaird]

@simonswiss - I'd love to keep playing with this idea, but will save putting time in until there's some feedback. Hope you can take a glance this week 🙏

[kennedybaird]

I'd still be interested in following through with this - if it's a no go then I would go back to transitioning all the examples to the new codesandbox approach so that they're at least working.