Simplify setup (#46)

src/routes/api/code/user_progress-subscribe.svelte

@@ -0,0 +1,16 @@
+<script>
+	import { user_progress } from 'svelte-podcast';
+
+	// return the current user progress
+	const progress = $user_progress;
+
+	// or subscribe to changes in the user progress
+	user_progress.subscribe((prog) => {
+		// do something with the new progress whenever they change
+		console.log(prog);
+	});
+</script>
+
+<p>
+	Listened to {progress['https://example.com/episodes/1']} seconds of episode 1.
+</p>