The document provides guidance on optimizing HTML code for search engines by following specific steps. These include including the target keyword in the page title, meta keywords list, H1 heading, first 50 and last 50 words of content, and alt text for images. The keyword should appear in bold on the page and have a weight of around 2% of the total content. The content should be between 100-1400 words. Following these optimization techniques will help rank higher in search engines for the target keyword.