[enh] searx index image added

searx/static/css/style.css

 
 h1 { font-size: 5em; }
 
+h1.title { background: url('/static/img/searx.png') no-repeat; width: 100%; background-position: center; }
+h1.title div { visibility: hidden; }
+
+
 input { border: 2px solid #666666; color: #444444;  padding: 8px; background-color: #FFFFFF; font-size: 1.1em; }
 
 input[type="checkbox"] { visibility: hidden; }

searx/templates/index.html

 {% block content %}
 {% include 'github_ribbon.html' %}
 <div class="center">
-    <h1 class="title">searx</h1>
+    <h1 class="title"><div>searx</div></h1>
     {% include 'search.html' %}
     <p class="top_margin">
         <a href="/about" class="hmarg">about</a>