Greyshipscode updated the Domain Management documentation in the railwayapp/docs repository to address Azure DNS constraints, focusing on the lack of CNAME flattening support. Using Markdown and technical writing skills, Greyshipscode added a direct link to Azure DNS documentation and recommended CloudFlare as a practical workaround for users affected by this limitation. This documentation enhancement provides clear, actionable guidance, reducing onboarding friction and potential support requests for developers configuring custom domains. The work was delivered as a single feature commit, demonstrating a targeted approach to improving user experience and documentation quality, with depth in understanding DNS configuration challenges and communicating solutions effectively.