Help me apply Diátaxis to the material below. Reader and existing knowledge: [describe] Task and desired outcome: [describe] Use these principles: A tutorial guides a learner through a successful learning experience.; A how-to guide helps someone with enough background complete a specific task.; Reference supports precise lookup; explanation develops context and understanding.. Preserve source facts, identifiers, quantities, conditions, exceptions, and uncertainty. Separate supplied facts from assumptions. Ask for missing information instead of inventing it. Explain your representation choices and provide a review checklist. Do not claim formal compliance or correctness from formatting alone. Material: [paste only information you are permitted to share]