Just a quick post to note how to include Jekyll liquid tags in a code segment block that is formatted in markdown. Bookend the markdown code block with

{ % raw % } 
.. <code block> .. 
{ % endraw % }. 

For example;

{ % raw % }
The markdown code block follows, note the Jekyll liquid tags …

---
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 | xml_escape }}</title>  
		<description>{{ site.description | xml_escape }}</description>  
		<link>{{ site.url }}{{ site.baseurl }}/</link>  
		<atom:link href="{{ "/feed.xml" | prepend: site.baseurl | prepend: site.url }}" rel="self" type="application/rss+xml"/>  
		<pubDate>{{ site.time | date_to_rfc822 }}</pubDate>  
		<lastBuildDate>{{ site.time | date_to_rfc822 }}</lastBuildDate>  
		<generator>Jekyll v{{ jekyll.version }}</generator>  
		{% for post in site.posts limit:10 %}  
  		<item>  
    		<title>{{ post.title | xml_escape }}</title>  
    		<description>{{ post.content | xml_escape }}</description>  
    		<pubDate>{{ post.date | date_to_rfc822 }}</pubDate>  
	        <link>{{ post.url | prepend: site.baseurl | prepend: site.url }}</link>  
	        <guid isPermaLink="true">{{ post.url | prepend: site.baseurl | prepend: site.url }}</guid>  
	        {% for tag in post.tags %}  
	        <category>{{ tag | xml_escape }}</category>  
	    {% endfor %}  
    	{% for cat in post.categories %}  
    		<category>{{ cat | xml_escape }}</category>  
    	{% endfor %}  
  		</item>  
		{% endfor %}  
  		</channel>  
</rss> 

{ % endraw % }