Worked on enhancing documentation within the PaddlePaddle/docs repository by updating the mobile_index_cn.md file to redirect users from a legacy forum link to the PaddlePaddle GitHub Discussions page. This change aimed to streamline community support, making it easier for users to find help and engage with the project. The update was implemented using Markdown and focused on technical writing best practices to ensure clarity and accessibility. All modifications were validated through standard CI checks, confirming no regressions. The work improved the user experience by consolidating support channels and demonstrated attention to detail in documentation and community engagement processes.