[docs] update 03-each-blocks sample for readable (#6907)

Author: aykutkardas

site/content/examples/03-logic/03-each-blocks/App.svelte

@@ -10,8 +10,10 @@
 
 <ul>
 	{#each cats as { id, name }, i}
-		<li><a target="_blank" href="https://www.youtube.com/watch?v={id}">
-			{i + 1}: {name}
-		</a></li>
+		<li>
+			<a target="_blank" href="https://www.youtube.com/watch?v={id}">
+				{i + 1}: {name}
+			</a>
+		</li>
 	{/each}
-</ul>
+</ul>