style(coverpage): clear format and add meta and config extras

Author: alxpez

_coverpage.md

@@ -1,7 +1,5 @@
 <!-- _coverpage.md -->
 
-<br/>
-
 <a href="https://vuegg.now.sh/" target="_blank" title="Go to Vuegg">
   <img width="250" src="/static/vuegg-fam.svg">
 </a>

index.html

@@ -4,7 +4,7 @@
     <meta charset="utf-8">
     <title>vuegg - vuejs GUI generator</title>
     <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
-    <meta name="description" content="vuejs GUI generator">
+    <meta name="description" content="vuejs GUI generator - mockups & code in one go!">
     <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
     <link rel="stylesheet" href="//unpkg.com/docsify/lib/themes/vue.css">
     <link rel="stylesheet" href="/static/main.css">
@@ -31,7 +31,9 @@
         auto2top: true,
         subMaxLevel: 2,
         loadNavbar: true,
+        mergeNavbar: true,
         loadSidebar: true,
+        autoHeader: true,
         themeColor: '#ea493f'
       }
     </script>