- GitHub の任意のページの右上隅にあるプロフィール写真をクリックし、[ Settings] をクリックします。
 - In the "Code, planning, and automation" section of the sidebar, click Repositories.
 - Next to the repository you want to leave, click Leave.
 - Read the warning carefully, then click I understand, leave this repository.
 
Next steps
For reference information, see Permission levels for a personal account repository.