title: How to separate posts by pages on Jekyll GitHub Pages?
body: <p>I just started using GitHub pages and I have a question.</p>
  <p>After I make 'Categories' pages, and I'd like to add posts (<strong>NOT ALL POSTS!</strong>) with some categories. But if I set like</p>
  <pre><code>---
  title: &quot;Project&quot;
  permalink: /project/
  layout: categories
  ---
  </code></pre>
  <p>then they show all the posts. But I'd like to show only some posts (I'm not sure but maybe some posts under 'Project' pages?).</p>
  <p>I'm sorry even I don't know how to ask this but could somebody help me with this if you get this...?</p>