Use lots of informative headings. Headings help separate text into manageable segments. Headings help readers find what they need quickly. Take the opportunity to highlight key points in the heading. Don't just use general, one-word headings.
Questions make excellent headings.
Highlight important material. Identify each in a series of requirements. Clarify chronological order. Use common terms in common ways Use the same term consistently to refer to the same group. Instead of . . .