Fix missing changements

src/app.rs

@@ -0,0 +1,13 @@
+use yew::prelude::*;
+
+#[function_component(App)]
+pub fn app() -> Html {
+    html! {
+        <main>
+            <img class="logo" src="https://yew.rs/img/logo.png" alt="Yew logo" />
+            <h1>{ "Hello World!!" }</h1>
+            <span class="subtitle">{ "from Yew with " }<i class="heart" /></span>
+            <super::components::Test></super::components::Test>
+        </main>
+    }
+}

src/main.rs

@@ -0,0 +1,8 @@
+mod app;
+pub(self) mod components;
+
+use app::App;
+
+fn main() {
+    yew::Renderer::<App>::new().render();
+}