O2 Script: adding the SSH Key to GitHub

Once we had TortoiseGIT  installed and used PuttyGen to create the SSH key we now need to add the SSH Key to the GitHub website, which is done by automating the browser:

        public static GitHub_CustomO2 add_SSH_PublicKey(this GitHub_CustomO2 gitHub)
        {       
            var ie = gitHub.IE;
            var keyPath = "What is the path to the public key to use?".askUser();
            if (keyPath.fileExists().isFalse())
            {
                "no key file provided".error();
            }
            else
            {
                var title = System.IO.Path.GetFileNameWithoutExtension(keyPath);
                var key = keyPath.fileContents();
                gitHub.homePage();
                gitHub.accountSettings();
                ie.link("SSH Public Keys").click();
                ie.link("Add another public key").click();    
                ie.field("public_key[title]").value(title);
                ie.field("public_key[key]").value(key);
                ie.button("<SPAN>Add key</SPAN>").click();    
            }
            return gitHub;
        }