Add documentation for rfl::Commented feature

[liuzicheng1987]

This PR adds documentation for the new rfl::Commented feature.
It includes:

• A new documentation page docs/commented.md explaining how to use rfl::Commented with YAML and XML, including code examples and API details.
• Integration of the new page into the MkDocs navigation.
• An entry in the README.md feature list.

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PR created automatically by Jules for task 15519898346803255693 started by @liuzicheng1987

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[gemini-code-assist]

Summary of Changes

Hello @liuzicheng1987, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request focuses on improving the project's documentation by introducing comprehensive details for the rfl::Commented feature. The changes ensure that users have clear guidance on how to leverage this wrapper for adding comments to fields in supported serialization formats, thereby enhancing the usability and understanding of the rfl library.

Highlights

• New Feature Documentation: A dedicated documentation page (docs/commented.md) has been added to explain the rfl::Commented wrapper, detailing its usage with YAML and XML, including code examples and API specifics.
• Documentation Navigation: The newly created commented.md page has been integrated into the MkDocs navigation structure, making it discoverable within the project's documentation.
• Feature List Update: The README.md file has been updated to include rfl::Commented in the list of supported custom containers, enhancing visibility of this feature.

Changelog

• README.md
  • Added rfl::Commented to the list of custom containers supported by the library.
• docs/commented.md
  • New file created to document the rfl::Commented<T> wrapper.
  • Includes explanations and code examples for using rfl::Commented with YAML and XML.
  • Details the API for accessing and modifying the underlying value and comments.
• mkdocs.yaml
  • Added an entry for rfl::Commented (commented.md) to the documentation navigation menu.

Activity

• The pull request was automatically generated by Jules to address a task initiated by @liuzicheng1987.

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[gemini-code-assist]

Code Review

This pull request adds documentation for the rfl::Commented feature. The changes include a new documentation page, an update to the README, and an update to the MkDocs navigation. The new documentation is clear and well-structured. I've provided a couple of suggestions to further improve the examples in the new commented.md file for better clarity and consistency.