basic interqctivity

src/App.js

@@ -1,7 +1,18 @@
 import './App.css';
 
 function Square({ value }) {
-  return <button className="square">{value}</button>;
+  function handleClick() {
+    console.log('clicked!');
+  }
+
+  return ( 
+    <button 
+      className="square"
+      onClick={handleClick}
+    >  
+      {value}
+    </button>
+  );
 }
 
 function App() {