github push passwordless

1. Generate an SSH key and associate the SSH key with the remote repository

2. Set your remote URL to a form that supports SSH

If you have done the steps above and are still getting the password prompt, make sure your repo URL is in the form

git+ssh://git@github.com/username/reponame.git

as opposed to

https://github.com/username/reponame.git

To see your repo URL, run:

git remote show origin

You can change the URL with:

git remote set-url origin git+ssh://git@github.com/username/reponame.git

Reference
https://stackoverflow.com/questions/8588768/git-push-username-password-how-to-avoid