Petyo Zhivkov contributed to the umbraco/UmbracoDocs repository by delivering a focused documentation update aimed at simplifying runtime configuration for developers. He removed the RuntimeMinification section from the runtime modes documentation, clarifying essential configuration options and reducing potential confusion for users. This targeted change improved onboarding and usability by streamlining the available guidance, ultimately lowering support overhead. Petyo applied technical writing skills and version control discipline, working primarily with Markdown to ensure clear and maintainable documentation. The work demonstrated a thoughtful approach to documentation hygiene, addressing a specific pain point and enhancing the overall developer experience within the Umbraco ecosystem.