Problem with 4/7, add 'add the remote' deploy your website to github pages, deploy a website

Problem with 4/7, add ‘add the remote’ (deploy your website to GitHub pages, [deploy a website])
The instructions say that i should “In the terminal, add the remote that points to the repository you created earlier. Use the example above to help you.”
so i did that using:
git remote add origin

but then it would show a message saying that “remote origin already exists” and the exercise shows a grey cross, even though i’m sure i did it right. Any suggestions?