Worked on improving documentation accuracy for the cpprefjp/site repository, focusing on maintaining clarity regarding C++ standard support. Addressed a documentation bug by updating a reference from C++16 to C++26, ensuring users receive correct information about the current standard. The work involved careful review and editing of Markdown files, leveraging expertise in C++ and technical documentation to enhance the quality and consistency of the repository. No new features were introduced during this period, but the targeted fix reduced potential confusion for users referencing the documentation. The contribution reflects attention to detail and a commitment to maintaining reliable technical resources.