title: Set up custom subdomain for Jekyll Blog hosted in Github Pages
body: <p>I created a Jekyll-powered blog and am hosting it with GitHub Pages.</p>
  <p>Now, I want to set up a subdomain (blog.example.com), but can't make it work.</p>
  <p>I have added a CNAME file with the text: blog.example.com. And I have added two A records in my Dreamhost account for the subdomain, both pointing to 204.232.175.78, provided by GitHub.</p>
  <p>Any idea about what the missing part is, or if I'm doing something incorrectly?</p>