Update RouteConfig type description

[markdalgleish]

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[changeset-bot]

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Latest commit: 74ac48b

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[github-actions]

🤖 Hello there,

We just published version 7.0.1-pre.0 which includes this pull request. If you'd like to take it for a test run please try it out and let us know what you think!

Thanks!

[github-actions]

🤖 Hello there,

We just published version 7.0.1 which includes this pull request. If you'd like to take it for a test run please try it out and let us know what you think!

Thanks!