- check with `git remote -v` if you have an origin stream (my repository) and a stream called `fork` (your fork)
-`git config --global user.name <yourusername>, for example "christian.strauch"
- `git config --global user.mail <youremail>`
- go in gitlab in the prererences of your account and then to access token. Generate an access token for all rights and save the password in a local file.