gitlab-org--gitlab-foss/doc/workflow/workflow.md

1. Clone project

git clone git@example.com:project-name.git

2. Create branch with your feature

git checkout -b $feature_name

3. Write code. Comit changes

git commit -am "My feature is ready"

4. Push your branch to GitLab

git push origin $feature_name

5. Review your code on Commits page
6. Create a merge request
7. Your team lead will review the code & merge it to the main branch