Add GitHub Issues skill and issue templates for better management

[tgrall]

Pull Request Checklist

• I have read and followed the CONTRIBUTING.md guidelines.
• My contribution adds a new instruction, prompt, or chat mode file in the correct directory. (skill)
• The file follows the required naming convention.
• The content is clearly structured and follows the example format.
• I have tested my instructions, prompt, or chat mode with GitHub Copilot. (skill)
• I have run npm start and verified that README.md is up to date.

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Description

This Agent Skill is used to create, update, and manage GitHub issues using MCP tools. It activates when users want to create bug reports, feature requests, or task issues, update existing issues, add labels/assignees/milestones, or manage issue workflows. Triggers on requests like "create an issue", "file a bug", "request a feature", "update issue X", or any GitHub issue management task.

Something like :

Create new issue & sub issues: Can you look at the list of languages supported by the application, and create issue about i18n, and sub issues for missing european languages

Update an existing issue : Can you update the issue 192 to match the proper template

Create a bug : I have an issue when running the selected test. Can you create an issue with this Error: Locator: getByText('Total : 3') Expected: visible Timeout: 5000ms Error: element(s) not found

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Type of Contribution

• New instruction file.
• New prompt file.
• New chat mode file.
• New collection file.
• Update to existing instruction, prompt, chat mode, or collection.
• Other (please specify):
  • Skill

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Additional Notes

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By submitting this pull request, I confirm that my contribution abides by the Code of Conduct and will be licensed under the MIT License.

[Copilot]

Pull request overview

This PR adds a new Agent Skill for managing GitHub issues through MCP (Model Context Protocol) tools. The skill enables automated creation and management of bug reports, feature requests, and task issues with proper formatting and templates.

• Introduces github-issues skill with comprehensive workflow guidance
• Provides reusable issue templates for bug reports, feature requests, and tasks
• Includes examples demonstrating proper MCP tool usage for issue creation

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
skills/github-issues/SKILL.md	Main skill definition with front matter, MCP tool documentation, workflow instructions, and detailed examples for creating and updating GitHub issues
skills/github-issues/references/templates.md	Reusable markdown templates for bug reports, feature requests, tasks, and minimal issues
docs/README.skills.md	Adds github-issues entry to the skills table with description and bundled assets reference