Update the landing page

app/welcome.html

@@ -11,14 +11,10 @@
 <div class="wrapper">
     <div class="content">
         <img src="/_admin/img/logo.png"/>
-        <h1> Cloudron Surfer </h1>
+        <h2> Cloudron Surfer </h2>
         <p>
-            Upload some files using the commandline tool.
+            <a href="/_admin">Manage your files in your browser</a> or use the <a href="https://www.npmjs.com/package/cloudron-surfer">commandline tool</a>.
         </p>
-        <pre>
-sudo npm -g install cloudron-surfer
-surfer login <%= appUrl %>
-surfer put [file]</pre>
         <br/>
         <br/>
         <br/>