Create-a-Gitlab-account
https://gitlab.com/users/sign_in#register-pane

Short-introduction-to-YAML
https://learn.getgrav.org/16/advanced/yaml

Top-10-Bash-file-system-commands
https://hackernoon.com/top-10-bash-file-system-commands-you-cant-live-without-4cd937bd7df1