chore(i18n): add Korean translation tutorial/index.md

[n0hack]

Hello, I have a personal suggestion along with the first translation.

It would be good to apply i18n to the buttons in the tutorial text as well.
For example, the "Previous" button can be translated into Korean as "이전".

<div class={style.buttonContainer}>
	{page.meta.prev && (
		<a class={style.prevButton} href={page.meta.prev}>
			Previous // {config.i18n.previous[lang] ?? "Previous"}
		</a>
	)}
	{tutorial.state['repl-final'] && (
		<button
			class={style.helpButton}
			onClick={tutorial.help}
			disabled={!showCode}
			title="Get help with this example"
		>
			Help
		</button>
	)}
	{page.meta.next && (
		<a class={style.nextButton} href={page.meta.next}>
			{page.meta.nextText || 'Next'}
		</a>
	)}
</div>

[rschristian]

It would be good to apply i18n to the buttons in the tutorial text as well.
For example, the "Previous" button can be translated into Korean as "이전".

Indeed, sounds like a good idea. Feel free to implement or create an issue for tracking that.

[rschristian]

Thanks!