我用git bash来操作，由于公司内部也用git版本管理，ssh key本地已经存在了，如何能够再重写这个ssh key与github绑定呢？
提示：Key is invalid. It must begin with 'ssh-ed25519', 'ssh-rsa', 'ssh-dss', 'ecdsa-sha2-nistp256', 'ecdsa-sha2-nistp384', or 'ecdsa-sha2-nistp521'. Check that you're copying the public half of the key
