title: How do I ensure that whitespace is preserved in Markdown?
body: <p>Currently, I have this line in a Markdown file detailing command output:</p>
  
  <pre><code>1\. Work (00:10:00)  
      1\. Mail letter (00:05:00, Est. 00:03:00)  
        Send letter to Foo Bar  
  2\. Personal (00:02:00)
  </code></pre>
  
  <p>However, when I preview the Markdown file, all of the whitespace is disregarded.</p>
  
  <blockquote>
    <p>1. Work (00:10:00)<br>
        1. Mail letter (00:05:00, Est. 00:03:00)<br>
          Send letter to Foo Bar<br>
    2. Personal (00:02:00)</p>
  </blockquote>
  
  <p>How do I preserve this whitespace?</p>