title: How to make all posts have a permalink with custom format "domain.com/blog/title"?
body: <p>What I'm trying to do is get all my posts to have the following format: domain.com/blog/title.</p>
  
  <p>However, in my <code>_posts</code> folder I have a file named <code>2010-07-11-hello.markdown</code> and it contains the following:</p>
  
  <pre><code>---
  title: Hello
  permalink: /blog/:title/ 
  ---
  Hello World!
  </code></pre>
  
  <p>What am I doing wrong? The permalinks aren't being converted. For example, the URL looks like this: <code>http://localhost:4000/blog/:title/</code> and I want the actual title to show up there.</p>