Worked on enhancing the iOS CalDAV synchronization setup documentation in the nextcloud/documentation repository, focusing on reducing user configuration errors and SSL issues. Improved the documentation by clarifying that TLS is managed by the app and instructing users not to prepend 'https://' to server URLs. Provided explicit guidance on including protocol and port information when necessary, with updated formatting to prevent SSL-related problems. These changes were implemented using reStructuredText (RST) and documentation best practices, tracked through two commits for transparency. The work emphasized clear, actionable instructions, aiming to lower support requests and streamline the setup process for iOS CalDAV users.