Jekyll theme based on Blueprint: Google Grid Gallery

1. Place a large image in /img/large/
2. Place a thumbnail version of the same image in /img/thumb/. Remember to use the same file name
3. Construction a post to display the image. Use the follow as an example:

---
layout: default
date:   2014-04-06 23:26:12
photo: 1.png
caption_header: Sample header
caption: sample caption
---

4. And finally, serve Jekyll source as you would normally.

View this jekyll theme in action here

After downloading, use the normal process of serving a jekyll site. Navigate to the directory in terminal and type jekyll build followed by jekyll serve

For more details, read documentation