docs: replace single prompt with AstroTabs scenario examples on Create Workflows page

[Copilot]

The "GitHub Web Interface" section of the Creating Agentic Workflows page had a single hardcoded issue-triage prompt. This replaces it with a tabbed set of four ready-to-use scenario prompts.

Changes

• docs/src/content/docs/setup/creating-workflows.mdx
  • Import Tabs/TabItem from @astrojs/starlight/components
  • Replace single markdown code block with a <Tabs> group containing four <TabItem> entries:
    • Issue Triage — label, deduplicate, clarify, assign
    • Activity Report — daily issue summarizing new issues, merged PRs, open blockers
    • Documentation Updater — daily PR to sync docs with recent code changes
    • AGENTS.md Maintainer — weekly PR keeping AGENTS.md current

Each prompt opens with the standard create.md URL sentence:

Create a workflow for GitHub Agentic Workflows using https://raw.githubusercontent.com/github/gh-aw/main/create.md

The purpose of the workflow is to triage new issues: label them by type and priority, identify
duplicates, ask clarifying questions when the description is unclear, and assign them to the
right team members.

Original prompt

Extend the prompt example in the “Create Workflows” documentation page to cover an issue triage agentic workflow.

Instead of a single code region, use AstroTabs with a single tab group that contains multiple scenarios:

• A tab for issue triage
• A tab for a daily report
• A tab for a daily documentation updater
• A tab for a weekly agents.md maintainer

For each tab, generate a concise prompt. Each prompt must start with the standard sentence that uses the Korean indexing profile with the URL, and you should inline that entire prompt text directly in the markdown file.

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[pelikhan]

@copilot keep the tab title names short. “Activity report”, “Documentation Updater“, ”AGENTS.me maintainer“

[Copilot]

@copilot keep the tab title names short. “Activity report”, “Documentation Updater“, ”AGENTS.me maintainer“

Done in 993a1d1. Tab labels are now: "Issue Triage", "Activity Report", "Documentation Updater", "AGENTS.md Maintainer".

[Copilot]

Pull request overview

This PR enhances the "Creating Agentic Workflows" documentation by replacing a single hardcoded issue-triage prompt with a tabbed interface showcasing four ready-to-use workflow scenarios. The change makes it easier for users to discover and copy different types of workflow prompts.

Changes:

• Added import for Tabs and TabItem components from Starlight
• Replaced single markdown code block with a tabbed interface containing four workflow examples: Issue Triage, Activity Report, Documentation Updater, and AGENTS.md Maintainer

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