Jinja template for Atom feed

atom.xml

<?xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.w3.org/2005/Atom">
 
    <title>{{ site_title }}</title>
    <link href="{{ feed_url }}" rel="self"/>
    <link href="{{ site_url }}"/>
    <updated>{{ updated }}</updated>
    <id>{{ id }}</id>

    {% for post in articles %}
    <entry>
        <title>{{ post.title }}</title>
        <link href="{{ post.url }}"/>
        <id>{{ post.atom_id }}</id>
        <updated>{{ post.date }}</updated>
        <summary type='html'>{{ post.summary | markdown }}</summary>
        <!-- <content type="html"></content> -->
        <author>
            <name>{{ post.author_name }}</name>
        </author>
    </entry>
    {% endfor %}
 
</feed>