Make the "this is in a broken state first, you need to fix it" approach more obvious

[dummdidumm]

I've closed about 10 PRs already from people who thought the tutorial is broken because they jumped right into it from Google or somewhere else / didn't read the preface.

Ideas:

• Rename "Show me" into "Show solution"
• Add a small banner above the code hinting at this when you enter the tutorial. It disappears once you type anything and doesn't reappear during the session

[Rich-Harris]

'Show me' is now 'Solve', and it's always visible:

Is that enough, do you think, or do we need something more?

[dummdidumm]

It's definitely more obvious - I don't know if it's enough, I'd say we wait a little and see if the these PRs come up again.

[Rich-Harris]

cool, will close this in the meantime then