created feature-box component and section

src/App.js

@@ -1,12 +1,14 @@
 import "./App.scss";
 import About from "./commons/about-section/about";
-import Header from "./commons/header/header";
+import Feature from "./commons/feature-section/feature";
+import Header from "./commons/header/header.jsx";
 
 function App() {
   return (
     <div>
       <Header />
       <About />
+      <Feature />
     </div>
   );
 }