config.yml 과 같은 경로에 아래의 코드를 넣어 만들어주세요.

<파일명: sitemap.xml>

---
layout: null
---

<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns:xsi="<http://www.w3.org/2001/XMLSchema-instance>"
        xsi:schemaLocation="<http://www.sitemaps.org/schemas/sitemap/0.9> <http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd>"
        xmlns="<http://www.sitemaps.org/schemas/sitemap/0.9>">
    {% for post in site.posts %}
    <url>
        <loc>{{ site.url }}{{ post.url }}</loc>
        {% if post.lastmod == null %}
        <lastmod>{{ post.date | date_to_xmlschema }}</lastmod>
        {% else %}
        <lastmod>{{ post.lastmod | date_to_xmlschema }}</lastmod>
        {% endif %}

        {% if post.sitemap.changefreq == null %}
        <changefreq>weekly</changefreq>
        {% else %}
        <changefreq>{{ post.sitemap.changefreq }}</changefreq>
        {% endif %}

        {% if post.sitemap.priority == null %}
        <priority>0.5</priority>
        {% else %}
        <priority>{{ post.sitemap.priority }}</priority>
        {% endif %}

    </url>
    {% endfor %}
</urlset>