docs: Update version to include devEngines.packageManager.version option

[djmurphy32]

Summary by CodeRabbit

• Documentation
  • Clarified that the version input is optional not only when a package manager is declared, but also when the devEngines package manager is set to "pnpm" and a package manager version is present in package.json. Updated linked reference text accordingly.

[coderabbitai]

📝 Walkthrough

Walkthrough

The PR updates README.md to clarify that the version input is optional not only when package.json contains a packageManager field, but also when devEngines.packageManager.name === "pnpm" and devEngines.packageManager.version is present in package.json. (48 words)

Changes

Version Input Documentation Clarification

Layer / File(s)	Summary
Documentation Update README.md	Clarifies version input is optional when packageManager exists in package.json or when devEngines.packageManager.name === "pnpm" and devEngines.packageManager.version is present.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐰 A README hop, a clearer trail,
Two checks now told in gentle detail.
PNPM or packageManager shows the way,
The version can rest—no need to say. ✨

🚥 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 accurately describes the main change: updating README.md documentation to include devEngines.packageManager.version as an option for version selection.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@README.md`:
- Line 15: Update the README sentence to reflect that the devEngines condition
requires both devEngines.packageManager.name set to "pnpm" and
devEngines.packageManager.version (or a packageManager field) — i.e., change the
phrasing to explicitly require devEngines.packageManager.name: "pnpm" plus
devEngines.packageManager.version rather than implying the version alone is
sufficient.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: b88e13bc-039d-4143-8abd-c37a83f15b47

📥 Commits

Reviewing files that changed from the base of the PR and between 8912a91 and 81e3dad.

📒 Files selected for processing (1)

• README.md

[Mister-Hope]

I personally think this is not the actual behavior, we have issues report in #150 #225 and #227, and my github workflow fails when prefering devEngines.packageManager