Worked on the spectrocloud/librarium repository to enhance documentation for registry mapping rules, focusing on clarifying how domain names map to external registries during image pulls. The contribution involved updating installer-reference.md using Markdown, adding a new diagram to visually explain the mapping process, and ensuring the documentation aligned with current installer behavior. This work improved onboarding for new users and reduced support inquiries by providing clearer guidance and practical examples. Demonstrated skills in technical writing, diagram creation, and collaborative pull request workflows. The update maintained documentation consistency and directly supported faster customer deployments by making configuration steps more transparent and accessible.