title: Jekyll: How to change the default ordering of collections
body: <p>I have a collection in my jekyll site that has files named as numbers. 1, 2, 3, ... 10, 11, 12, and so on. I'm building these pages to connect with each other, so 1 would connect to 2, ...</p>
  
  <p>When I build, jekyll serves it in the order of 1, 10, 11, 12, 2, 3, ...</p>
  
  <p>How can I have it build in proper numerical order?</p>