Docs: clarify community tool sharing

[kmishra1204]

Summary

• add guidance for sharing community-maintained CrewAI tool packages after publishing to PyPI
• clarify that the package README should remain the primary source of truth
• list the information maintainers can ask for when evaluating a docs mention

This addresses the documentation path question without adding a third-party tool catalog or documenting any one external package directly.

Closes #6458.

Validation

• git diff --check -- docs/edge/en/guides/tools/publish-custom-tools.mdx

AI assistance / label note

• AI assistance was used while drafting and reviewing this documentation-only change.
• CrewAI's contributing guide says AI-assisted PRs require the llm-generated label. I attempted to apply it, but this account does not have label permission on the upstream repository.

[coderabbitai]

📝 Walkthrough

Walkthrough

This PR adds a new "Sharing Community Tools" documentation subsection to the custom tools publishing guide. It provides guidance on maintaining the package README as the primary reference and specifies details needed when requesting a CrewAI docs mention for community tools.

Changes

Documentation Update

Layer / File(s)	Summary
Sharing Community Tools guidance docs/edge/en/guides/tools/publish-custom-tools.mdx	Adds a new subsection instructing authors to keep the README as the primary reference and to include links, supported versions, installation steps, minimal usage snippet, required environment variables, and maintenance/security notes when requesting a docs mention, plus guidance on avoiding duplication and following the standard contribution process for official inclusion.

Compact Diff Overview: +18/-0 lines, low review effort.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title clearly summarizes the documentation change about community tool sharing.
Description check	✅ Passed	The description accurately matches the doc update and its purpose.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[kmishra1204]

I checked .github/CONTRIBUTING.md and saw the required llm-generated label for AI-assisted contributions. I tried to apply llm-generated, but GitHub returned a permissions error for AddLabelsToLabelable. I added a note to the PR body as well; maintainers, please apply the label if needed.