Update documentation contribution guidelines for SHIP-0041

[adambkaplan]

Overview

This task updates CONTRIBUTING.md and related documentation to reflect the new documentation structure and contribution process as described in SHIP-0041.

Description

Update CONTRIBUTING.md and related documentation to reflect the new documentation structure and contribution process. Clarify that docs should be submitted via PRs to the website repository, not in-tree documentation.

The updated guidelines should:

• Explain the new documentation structure (Quick Start, Concepts, How To, Reference)
• Provide guidance on which section to use for different types of content
• Document the contribution process
• Include examples for each documentation type

Acceptance Criteria

• CONTRIBUTING.md updated with new structure
• Documentation types (Concepts, How To, Reference) explained
• Contribution process documented (PRs to website repository)
• Examples provided for each documentation type
• Guidelines reviewed by documentation maintainers

Dependencies

• Blocks: None
• Blocked by: None (can be done in parallel with migration tasks)

Technical Notes

• Review existing CONTRIBUTING.md to understand current structure
• Add section explaining the four documentation types
• Provide clear examples of each documentation type
• Document the PR process for documentation contributions
• Consider adding a documentation template or checklist

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Generated-by: Cursor