autodiscovery link error

[netgc]

autodiscovery - Add feed autodiscovery. (Default: true)
will auto add <link rel="alternate"... to all pages
the link url define in lib/autodiscovery.js

  if (typeof type === 'string') {
    autodiscoveryTag += `<link rel="alternate" href="${url_for.call(this, path)}" `
      + `title="${config.title}" type="application/${type.replace(/2$/, '')}+xml">\n`;
  } else {
    type.forEach((feedType, i) => {
      autodiscoveryTag += `<link rel="alternate" href="${url_for.call(this, path[i])}" `
        + `title="${config.title}" type="application/${feedType.replace(/2$/, '')}+xml">\n`;
    });
  }

it use Relative path define in path: parameter，but the file only generate in site root directory，Links are wrong on all pages except the home page，

so js should add ${config.root} resolve the error：

  if (typeof type === 'string') {
    autodiscoveryTag += `<link rel="alternate" href="${config.root}${url_for.call(this, path)}" `
      + `title="${config.title}" type="application/${type.replace(/2$/, '')}+xml">\n`;
  } else {
    type.forEach((feedType, i) => {
      autodiscoveryTag += `<link rel="alternate" href="${config.root}${url_for.call(this, path[i])}" `
        + `title="${config.title}" type="application/${feedType.replace(/2$/, '')}+xml">\n`;
    });
  }

[Uiolee]

it's not a issue.

<link rel="alternate" href="/atom.xml" title="Hexo" type="application/atom+xml">