Sync svelte docs (#1176)

sync svelte docs

Co-authored-by: svelte-docs-bot[bot] <196124396+svelte-docs-bot[bot]@users.noreply.github.com>

Author: github-actions[bot]

apps/svelte.dev/content/docs/svelte/03-template-syntax/01-basic-markup.md

@@ -186,7 +186,7 @@ You can use HTML comments inside components.
 Comments beginning with `svelte-ignore` disable warnings for the next block of markup. Usually, these are accessibility warnings; make sure that you're disabling them for a good reason.
 
 ```svelte
-<!-- svelte-ignore a11y-autofocus -->
+<!-- svelte-ignore a11y_autofocus -->
 <input bind:value={name} autofocus />
 ```