Github and push a repo

1

Hi,
I tried to push my code to github I on mac:

git push origin master
Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

Thank you

2

Have you set up git to link with your GitHub account?

Also, is it your repo you’re pushing to?

3

I did the tuto above, I push my own repo, I cloned and do some commit.