Create public static files to serve

config/config.go

@@ -6,7 +6,8 @@ import (
 )
 
 var (
-	Port string
+	Port   string
+	Public string
 )
 
 func init() {
@@ -16,8 +17,10 @@ func init() {
 func New() {
 	as := args.NewArgSet()
 	as.Append(args.INT, "p", "port to listen on", 52222)
+	as.Append(args.STRING, "d", "dir with public files", "./public")
 	if err := as.Parse(); err != nil {
 		panic(err)
 	}
 	Port = fmt.Sprintf(":%d", as.GetInt("p"))
+	Public = as.GetString("d")
 }