Add a default pinry favicon

pinry/templates/base.html

@@ -6,6 +6,8 @@
         <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1"/>
         <title>{% block title %}Pinry{% endblock %}</title>
 
+        <link rel="shortcut icon" type="image/png" href="/static/favicon.png"/>
+
         <!-- CSS -->
         <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Open+Sans:300,400,700"/>
         <link rel="stylesheet" href="https://unpkg.com/bootstrap@3.3.6/dist/css/bootstrap.min.css"/>