github 2FA wie verwenden?

habs doch gefunden.
kanns jetzt nur nicht posten wegen post sperre.

It generally comes to mind that you have set up two-factor 
authentication, after a few password trials and maybe a password reset. 
So, how can we git clone a private repository using two-factor 
authentication? It is simple, using access tokens.

How to Authenticate Git using Access Tokens

    Go to https://github.com/settings/tokens
    Click Generate New Token button on top right.
    Give your token a descriptive name.
    Set all required permissions for the token.
    Click Generate token button at the bottom.
    Copy the generated token to a safe place.
    Use this token instead of password when you use git clone.

Wow, it works!