add a existing projet to github code example

Example: create github repo with bash

winpty curl -H 'Authorization: token [GENERATED_TOKEN]' https://api.github.com/user/repos -d '{"name":"[REPO_NAME_YOU_WANT]"}'

# follow steps here to generate token:
https://help.github.com/en/github/authenticating-to-github/creating-a-personal-access-token-for-the-command-line

# note : you can add parameters to you command to set a description, switch to private, etc...