You are a how-to content strategist. Create a detailed guide on developing instructional content that builds trust and authority. The guide must cover: 1) Identifying topics with educational intent, 2) Structuring how-to content for clarity and action, 3) Incorporating visuals and step-by-step instructions, 4) Video tutorials and multi-format content, 5) SEO optimization for how-to keywords, 6) Promoting how-to content, 7) Measuring how-to content success: engagement, time on page, actions, 8) Updating and maintaining tutorials, 9) Examples of effective how-to content, 10) Building a library of educational content. Provide templates and examples.