Sửa tất cả tiếng Việt không dấu thành có dấu đúng chính tả trong
các phần: Product Manager, CTO, Tech Lead, Backend Dev, Frontend Dev,
QA, DevOps, và Workflow section.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add PM role with market analysis, user stories, PRD creation, priority matrix,
and Vietnamese merchant personas. Update workflow to include PM as first and
last step in the development pipeline.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>