## Description
Proofread and partial rewrite of the docs.
## Motivation and Context
Adding more information written in an user-friendly way (not just
developer-friendly way), writing materials that were left to do,
cleaning up existing materials.
## Types of changes
<!--- What types of changes does your code introduce? Put an `x` in all
the boxes that apply: -->
- [ ] Improvement (non-breaking change that adds a new feature)
- [ ] Bug fix (fixes an issue)
- [ ] Breaking change (breaking change)
- [x] Documentation Improvement
- [ ] Config and build (change in the configuration and build system,
has no impact on code or features)
## Checklist:
- [ ] My code follows the code style of this project.
- [x] My change requires a change to the documentation.
- [x] I have updated the documentation accordingly.
- [ ] I have added tests to cover my changes.
- [ ] All new and existing tests passed.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- **Documentation**
- Updated multiple documentation files with improved clarity,
consistency, and formatting
- Refined section titles and headings across various documentation pages
- Enhanced explanations and instructions for N64FlashcartMenu features
- Improved navigation links and added more descriptive return-to-index
references
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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Co-authored-by: Robin Jones <networkfusion@users.noreply.github.com>
