docs: fix readme and links

examples/readme.rs

@@ -12,10 +12,8 @@ fn app(cx: Scope) -> Element {
     let count = use_state(&cx, || 0);
 
     cx.render(rsx! {
-        div {
-            h1 { "High-Five counter: {count}" }
-            button { onclick: move |_| count.set(count + 1), "Up high!" }
-            button { onclick: move |_| count.set(count - 1), "Down low!" }
-        }
+        h1 { "High-Five counter: {count}" }
+        button { onclick: move |_| count.set(count + 1), "Up high!" }
+        button { onclick: move |_| count.set(count - 1), "Down low!" }
     })
 }