add filename to URL

lib/server.js

@@ -107,7 +107,7 @@ function Server (torrent, opts) {
         return serveIndexPage()
       }
 
-      var index = Number(pathname.slice(1))
+      var index = Number(pathname.split('/')[1])
       if (Number.isNaN(index) || index >= torrent.files.length) {
         return serve404Page()
       }
@@ -121,7 +121,7 @@ function Server (torrent, opts) {
       res.setHeader('Content-Type', 'text/html')
 
       var listHtml = torrent.files.map(function (file, i) {
-        return '<li><a download="' + file.name + '" href="/' + i + '">' + file.path + '</a> ' +
+        return '<li><a download="' + file.name + '" href="/' + i + '/' + file.name + '">' + file.path + '</a> ' +
           '(' + file.length + ' bytes)</li>'
       }).join('<br>')