docs: refresh readmes for copilot code review rulesets

[mtb-xt]

Summary

Refresh the generated README files after #46 and add a source-of-truth Copilot ruleset example in README.yaml.

What changed

• update README.yaml with a Copilot code review ruleset example
• regenerate README.md from the repo's canonical docs workflow
• regenerate src/README.md from the same source
• reflect the merged cloudposse/repository/github 1.6.0 module version in docs
• remove stale generated references to deprecated repository fields and rulesets_etags
• include the existing update rule in the rendered rulesets schema

Validation

• atmos docs generate readme
• atmos docs generate readme-simple

This is a docs-only follow-up to #46.

Summary by CodeRabbit

• Documentation
  • Added guidance for enabling GitHub Copilot code review through repository rulesets with configuration examples
  • Updated module version documentation and revised input/output schema documentation to reflect the latest supported configuration options

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 654190dd-d8e9-47e3-8f7e-893bab42df79

📥 Commits

Reviewing files that changed from the base of the PR and between 9f12fdb and a3bc3ad.

📒 Files selected for processing (3)

• README.md
• README.yaml
• src/README.md

✅ Files skipped from review due to trivial changes (1)

• README.yaml

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📝 Walkthrough

Walkthrough

Documentation updated to reflect enabling GitHub Copilot code review via repository rulesets, bump the cloudposse/repository/github module from 1.1.0 to 1.6.0, remove deprecated repository fields, add a rules.update boolean, and drop the rulesets_etags output entry.

Changes

Cohort / File(s)	Summary
Root README README.md	Added example and docs for enabling GitHub Copilot code review via a repository ruleset; bumped cloudposse/repository/github from 1.1.0 → 1.6.0; removed has_downloads and ignore_vulnerability_alerts_during_read from documented repository inputs; added rules.update = optional(bool, false); removed output_rulesets_etags.
Module README src/README.md	Mirrors root README changes: documents Copilot ruleset example, module version bump to 1.6.0, removes ignore_vulnerability_alerts_during_read from repository schema, adds rules.update, and removes rulesets_etags output.
YAML docs / examples README.yaml	Adds usage example demonstrating copilot_code_review ruleset targeting default branch with review_on_push: true (documentation only).

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• [codex] support copilot code review rulesets #46 — Bumps cloudposse/repository/github to v1.6.0 and documents Copilot code review ruleset changes.

Suggested labels

needs-test

Suggested reviewers

• goruha

Poem

🐰 A little hop for docs today,
I damp the old fields gently away,
New ruleset options spring and play,
Copilot reviews now find their way,
Hooray for code — let's hop and say! 🥕✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and specifically describes the main change: refreshing README documentation files to include GitHub Copilot code review ruleset examples and updated module version information.
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.

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

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[mergify]

Important

Do not edit the README.md directly. It's auto-generated from the README.yaml

Please update the README.yaml file instead.

Could you fix it @mtb-xt? 🙏

[mergify]

Important

Title is necessary and should not be empty.

Kindly provide a meaningful title for this Pull Request.