How to delete a remote git repository from github web page

In order to delete a git repository from github web page, first log on to github site and select the git repository, once inside the git repository you want to delete, select the settings button on top left of the page, then scroll to the bottom of the page called "Danger Zone", it has button to allow you to make it public or private, transfer the repository to others, or delete the repository.

By the way, if it fails to clone a git remote repository to local or push it to remote, you will need to set the SSH keys from settings page in github web site. You need first generate the private and public key and then load the public key from ~/ssh/id_rsa.pub to github web site's SSH key settings.