Fix documented banners example

Author: Lechevallier

documentation/docs/examples/banners.mdx

@@ -116,11 +116,7 @@ const Component = () => {
         { image: '/static/banner-foreground.png', speed: -10 },
       ]}
       className="aspect-[2/1]"
-    >
-      <div className="absolute inset-0 flex items-center justify-center">
-        <h1 className="text-8xl text-white font-thin">Hello World!</h1>
-      </div>
-    </ParallaxBanner>
+    />
   );
 };
 ```