feature: add fncy logo

Author: redhdx

cmd/faucet/faucet.html

@@ -5,6 +5,7 @@
 	<meta http-equiv="X-UA-Compatible" content="IE=edge">
 	<meta name="viewport" content="width=device-width, initial-scale=1">
 
+	<link rel="icon" href="https://fncyscan.fncy.world/favicon.ico">
 	<title>{{.Network}}: Faucet</title>
 
 	<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />