NickTraitouros/NickTraitouros.github.io — pull request #1 by JoeAnzalone (2014-05-09 15:44:48+00:00)
Title: Add default layout and a .gitignore

Your site wasn't validating since you didn't have all the required HTML elements
Adding a layout fixes that quite easily without you having to make any changes to your actual content :)(index.md in this case)

I also added a .gitignore file so you don't accidentally commit your generated site