Your repository must be named Design-Jam-Submission and the visibility must be Public. Make sure GitHub pages are active for this repository. Make sure your repository has an index.html page. Verify all this by visiting https://username.github.io/Design-Jam-Submission and checking that it contains your site. You can submit your repo details as soon as the competition starts and we will consider the latest commit before the deadline for judging.
Host the site that you have created on GitHub pages only. Name your repository for this submission as Design-Jam-Submission. Do not change the name of the repository as we have an a system to verify the existence of this repository. Your URL should be something like github-user-name.github.io/Design-Jam-Submission. Our system will not accept URLs which don't follow this specific format. To know more about GitHub pages visit this page.