missing metadata

Playground/debug.html

@@ -6,6 +6,8 @@
         <meta charset='utf-8' />
         <meta name="viewport" content="width=device-width, user-scalable=no">
         <link rel="shortcut icon" href="https://www.babylonjs.com/favicon.ico">
+        <meta name="description" content="Babylon.js playground online debug">
+        <meta name="keywords" content="Babylon.js,WebGL,3D, debug">
 
         <link rel="apple-touch-icon" sizes="57x57" href="https://www.babylonjs.com/img/favicon/apple-icon-57x57.png">
         <link rel="apple-touch-icon" sizes="60x60" href="https://www.babylonjs.com/img/favicon/apple-icon-60x60.png">

Playground/index-local.html

@@ -6,6 +6,8 @@
         <meta charset='utf-8' />
         <meta name="viewport" content="width=device-width, user-scalable=no">
         <link rel="shortcut icon" href="https://www.babylonjs.com/favicon.ico">
+        <meta name="description" content="Babylon.js playground is a live editor for Babylon.js WebGL 3D scenes">
+        <meta name="keywords" content="Babylon.js,WebGL,3D">
 
         <link rel="stylesheet" href="https://use.typekit.net/cta4xsb.css" />
         <link rel="stylesheet"