read the permissions and click "Authorize Netlify by Netlify"
If prompted "where do you want to install netlify", choose your github username.
Choose "all repositories", for simplicity, but read the permissions you are allowing.
if you want to choose "only select repositories", that is ok (but more work)
Under "Continuous Deployment: GitHub App", select which repo you want to set up
Common Problem: if the repo is not there, it may be because you haven't granted netlify to look at all of your repos. Follow the prompt to configure github-netlify integration and grant permissions for the repo you want.
Under "branch to deploy" choose the branch of your repo to which you will most often be committing when working on the site. That way, your deployed site will be updated with every change you make. (Later in the course you'll change this way of working.)
Do not fill in "build command" and "publish directory" - these should be empty for your current projects.