A fork is a copy of a repository that allows you to freely experiment with changes.
ekjphd/DIG3171 → YourUsername/DIG3171
GitHub
YourUsername/DIG3171
GitHub Pages
GitHub Pages is designed to host your personal, organization, or project pages from a GitHub repository.
Source
Deploy from a branch
/(root)
Your site is being built from the main branch.
Your GitHub Pages site is currently being built from the main branch. For more information, see "Configuring a publishing source for your GitHub Pages site."