If your guide is in Microsoft Word, use the Mark Entry tool (References tab) to tag terms. Word will then generate an alphabetized index automatically.
Read through the final "proof" version of your document. Use index cards or a separate document to list terms and their page numbers as you find them. intitle index of pdf books
Why it works: The phrase "Parent Directory" is universally present in all Apache directory listings. Including it forces Google to return only raw directory structures, not blog posts or landing pages. If your guide is in Microsoft Word, use