So I'm following this guide here to create a Github page
I created a repository, cloned it to my project directory and pushed, finally got to this last step:
Fire up a browser and go to http://username.github.io. Give it a couple of minutes for your page to show up—there will be a delay this very first time. In the future, changes will show up pretty much instantly.
Rename your project name to
firstname.lastname@example.org mention in the document
This repository must use the username/username.github.io naming scheme.
You can only use your own account name for a User or Org Pages repository. A repository like joe/bob.github.io will not build Pages.