Yuri Imai updated the Compute Instance Tutorial in the oracle-japan/ocitutorials repository to align with the latest Oracle Cloud Infrastructure UI and Oracle Linux 8. Using Markdown and technical writing skills, Yuri revised image references, updated OS version details, and clarified networking and SSH key generation steps, also providing new screenshots. The work included multiple documentation passes to correct typos and improve formatting, enhancing clarity and reducing onboarding confusion for OCI users. By maintaining consistent commit hygiene and traceability, Yuri ensured the documentation remained accurate and maintainable, demonstrating a methodical approach to technical documentation and user experience improvement.