Sync svelte docs (#1034)

sync svelte docs

Co-authored-by: Rich-Harris <[email protected]>

Author: github-actions[bot]

apps/svelte.dev/content/docs/svelte/99-legacy/30-legacy-svelte-component.md

@@ -3,7 +3,7 @@ NOTE: do not edit this file, it is generated in apps/svelte.dev/scripts/sync-doc
 title: <svelte:component>
 ---
 
-In runes mode, `<MyComponent>` will re-render if the value of `MyComponent` changes.
+In runes mode, `<MyComponent>` will re-render if the value of `MyComponent` changes. See the [Svelte 5 migration guide](/docs/svelte/v5-migration-guide#Breaking-changes-in-runes-mode-svelte:component-is-no-longer-necessary) for an example.
 
 In legacy mode, it won't — we must use `<svelte:component>`, which destroys and recreates the component instance when the value of its `this` expression changes: