fix(docs): update tanstack start routing setup (#9396)
* fix(docs): update tanstack start routing setup
* Apply suggestion from @snowystinger
* fix spacing
* Apply suggestion from @snowystinger
* include in S2 router docs
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Co-authored-by: Robert Snow <snowystinger@gmail.com>
Co-authored-by: Robert Snow <rsnow@adobe.com>
Co-authored-by: Reid Barber <reid@reidbarber.com>
