update meta description

site/theme/static/template.html

@@ -4,6 +4,7 @@
   <meta charset="utf-8">
   <meta http-equiv="X-UA-Compatible" content="IE=edge">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <meta name="description" content="Ant Design - An enterprise-class UI design language and React-based implementation">
   <title>Ant Design - One Design Language</title>
   <link rel="icon" href="https://t.alipayobjects.com/images/T1QUBfXo4fXXXXXXXX.png" type="image/x-icon">
   <link rel="stylesheet" type="text/css" href="https://fonts.googleapis.cnpmjs.org/css?family=Lato:400,700|Raleway"/>