add final chapter

site/content/tutorial/19-next-steps/01-congratulations/app-a/App.svelte

@@ -0,0 +1,49 @@
+<script>
+	import { onMount } from 'svelte';
+
+	let characters = ['🥳', '🎉', '✨'];
+
+	let confetti = new Array(100).fill()
+		.map((_, i) => {
+			return {
+				character: characters[i % characters.length],
+				x: Math.random() * 100,
+				y: -20 - Math.random() * 100,
+				r: 0.1 + Math.random() * 1
+			};
+		})
+		.sort((a, b) => a.r - b.r);
+
+	onMount(() => {
+		let frame;
+
+		function loop() {
+			frame = requestAnimationFrame(loop);
+
+			confetti = confetti.map(emoji => {
+				emoji.y += 0.7 * emoji.r;
+				if (emoji.y > 120) emoji.y = -20;
+				return emoji;
+			});
+		}
+
+		loop();
+
+		return () => cancelAnimationFrame(frame);
+	});
+</script>
+
+<style>
+	:global(body) {
+		overflow: hidden;
+	}
+
+	span {
+		position: absolute;
+		font-size: 5vw;
+	}
+</style>
+
+{#each confetti as c}
+	<span style="left: {c.x}%; top: {c.y}%; transform: scale({c.r})">{c.character}</span>
+{/each}

site/content/tutorial/19-next-steps/01-congratulations/text.md

@@ -0,0 +1,11 @@
+---
+title: Congratulations!
+---
+
+You've now finished the Svelte tutorial and are ready to start building apps. You can refer back to individual chapters at any time (click the title above to reveal a dropdown) or continue your learning via the [API reference](docs), [Examples](examples) and [Blog](blog). If you're a Twitter user, you can get updates via [@sveltejs](https://twitter.com/sveltejs).
+
+To get set up in your local development environment, check out [the quickstart guide](blog/the-easiest-way-to-get-started).
+
+If you're looking for a more expansive framework that includes routing, server-side rendering and everything else, take a look at [Sapper](https://sapper.svelte.technology).
+
+Most importantly: since you're now a member of the Svelte community, you should [join our friendly Discord chatroom](https://discord.gg/yy75DKs). That's where you'll find fellow Svelte users, and it's where we plan the future of the framework.

site/content/tutorial/19-next-steps/meta.json

@@ -0,0 +1,3 @@
+{
+	"title": "Next steps"
+}