docs: fix links in index.mdx and refactor simple example page

[sommeeeer]

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Latest commit: 7dcf9f9

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Name	Status	Preview	Comments	Updated (UTC)
open-next	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jun 14, 2024 3:43pm

[sommeeeer]

@khuezy do we want double or single quotes? :) as it is live now theres a mix

[khuezy]

Thanks for the PR, I don't know if we have a lint rule for the quotes. But personally, I use single quote for ts and double quotes for HTML.

[sommeeeer]

Thanks for the PR, I don't know if we have a lint rule for the quotes. But personally, I use single quote for ts and double quotes for HTML.

same here :)

[conico974]

Apart from the comment i added, it's good.
Once updated i'll merge

[conico974]

Thanks LGTM!