如何使用Jekyll站点设置RSS提要？

---
layout: null
---
<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
  <channel>
    <title>{{ site.title }}</title>
    <link>{{ site.url }}</link>
    <description>{{ site.description }}</description>
    <language>{{ site.lang }}</language>
    <lastBuildDate>{{ site.time | date_to_rfc822 }}</lastBuildDate>
    <atom:link href="{{ "/feed.xml" | prepend: site.baseurl | prepend: site.url }}" rel="self" type="application/rss+xml" />
    {% for post in site.posts %}
    <item>
      <title>{{ post.title }}</title>
      <link>{{ post.url | prepend: site.baseurl | prepend: site.url }}</link>
      <pubDate>{{ post.date | date_to_rfc822 }}</pubDate>
      <description>{{ post.excerpt | strip_html | xml_escape }}</description>
    </item>
    {% endfor %}
  </channel>
</rss>

<a href="{{ "/feed.xml" | prepend: site.baseurl | prepend: site.url }}">
  <img src="/path/to/rss-icon.png" alt="RSS Feed" />
</a>