Worked on the clangenb/polkadot-sdk repository to enhance security documentation and improve accessibility for contributors. Focused on updating the SECURITY.md file using Markdown, the work involved removing duplicate entries and ensuring the documentation accurately reflected the current security posture. A symbolic link was added to the repository root, making security guidelines more discoverable and reducing onboarding friction for new developers. Emphasized security best practices throughout the process, with clear and traceable commit messaging to support maintainability. No new features were introduced during this period; the primary contribution centered on documentation hygiene and resolving a documentation-related bug for improved governance.