title: Jekyll not interpreting markdown
body: <p>I'm creating a site using <a href="https://github.com/mojombo/jekyll" rel="noreferrer">jekyll.rb</a>.<br>
  I have a page called about.html:</p>
  
  <pre><code>&lt;div class="grid_10 page"&gt;
      {% include about_content.markdown %}
  &lt;/div&gt;
  </code></pre>
  
  <p>In about_content.markdown I have some dummy markdown:</p>
  
  <pre><code>A First Level Header
  ====================
  
  A Second Level Header
  ---------------------
  
  Hello!
  </code></pre>
  
  <p>For some reason, when the page is rendered, the result is this:</p>
  
  <p><a href="http://gabrielecirulli.com/p/20120107-203135.png" rel="noreferrer">result http://gabrielecirulli.com/p/20120107-203135.png</a></p>
  
  <p>Even if I add the YAML front matter to my markdown file nothing changes.</p>
  
  <p>This is my _config.yml</p>
  
  <pre><code>safe:        false
  auto:        false
  server:      false
  server_port: 4000
  baseurl:    /
  
  source:      .
  destination: ./_site
  plugins:     ./_plugins
  
  future:      true
  lsi:         false
  pygments:    false
  markdown:    maruku
  permalink:   date
  
  maruku:
    use_tex:    false
    use_divs:   false
    png_engine: blahtex
    png_dir:    images/latex
    png_url:    /images/latex
  
  rdiscount:
    extensions: []
  
  kramdown:
    auto_ids: true,
    footnote_nr: 1
    entity_output: as_char
    toc_levels: 1..6
    use_coderay: false
  
    coderay:
      coderay_wrap: div
      coderay_line_numbers: inline
      coderay_line_numbers_start: 1
      coderay_tab_width: 4
      coderay_bold_every: 10
      coderay_css: style
  </code></pre>
  
  <p>How can I make jekyll interpret markdown?</p>