chore: fix stale links in README.md

[paulftw]

Why

Storybook links for Lines (and beziers) and MapControls seem to be outdated.

Checklist

this change is prob way too trivial for a checklist

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Name	Status	Preview	Comments	Updated (UTC)
drei	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jun 25, 2024 3:06pm

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:tada: This PR is included in version 9.107.1 :tada:

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