Optimize page: content/english/net/advanced-comparison/mastering-document-comparison-groupdocs-dotnet/_index.md - - Updated title and meta description to include primary and secondary keywords.

- Added primary keyword in first paragraph and a dedicated H2 heading.
- Integrated secondary keyword “how to compare documents .net” in headings and body.
- Inserted Quick Answers section after introduction for AI-friendly snippets.
- Added FAQ section with concise, citation‑ready answers.
- Included trust signals (last updated, tested version, author) at the bottom.
- Expanded explanations, use‑case descriptions, and troubleshooting tips while preserving all original links, code blocks, shortcodes, and images.

Author: muqarrab-aspose