author added

Author: Souravdey777

public/index.html

@@ -9,6 +9,7 @@
       name="description"
       content="A website to understand the concept of css Flexbox."
     />
+    <meta name="author" content="Sourav Dey" />
     <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo.png" />
     <!--
       manifest.json provides metadata used when your web app is installed on a