In your Github dashboard, click “new repository” as shown below.

Then, and this is very important, make sure the repository name is your username.github.io. As pictured below. repo-name-user Of course, make sure to input your username—not mine. So, if your username is chunkymonkey—it'd be chunkymonkey.github.io Feel free to add a description or not. (Basically, it's just a description of your repository.) And, unless you want to pay monthly, the repository must be “public“. I'm not initializing with a README. So if you're following along—don't either. Finally, click the green “create repository” button.