Intial general structure of source code and page.

src/components/NotFound.tsx

@@ -0,0 +1,10 @@
+import "./styles/notFound.css";
+
+export const NotFound = () => {
+    return (
+        <article>
+            <h1>Page not found</h1>
+            <p>Check the link address...</p>
+        </article>
+    )
+}