Test: Verify automated Copilot workflow with README update

[Copilot]

Overview

This PR verifies the automated GitHub Copilot workflow by demonstrating the complete cycle: issue creation → agent assignment → branch creation → pull request generation.

Changes

Added a minimal note to README.md documenting that this repository has been used to test GitHub Copilot's automated workflow capabilities. The change appends a footer section to the existing README content without modifying any of the original forking example documentation.

Why This Change

This is a test issue to validate that the Copilot coding agent can:

• Be automatically assigned to an issue
• Create a new branch for the work
• Make appropriate code changes
• Open a pull request that references the original issue

The README update serves as a trivial but meaningful change that demonstrates the workflow while preserving the repository's purpose as a GitHub forking example.

Testing

No build or test infrastructure exists in this repository. The change is purely documentation and has been manually verified to display correctly in the README.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Test</issue_title>
<issue_description># Test

Test issue

Problem

A placeholder test issue to verify automated workflow: create issue -> assign Copilot coding agent -> generate PR.

Desired Outcome

Copilot coding agent creates a branch and pull request that references and closes this issue.

Acceptance Criteria

• Issue assigned to Copilot coding agent
• Branch created by agent
• Pull request opened referencing this issue (e.g. "Closes #ISSUE_NUMBER")
• PR ready for review

Notes

No code specifics provided; agent may introduce a trivial change (e.g., README update) to demonstrate workflow.
</issue_description>

Comments on the Issue (you are @copilot in this section)

Fixes #6

---

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.