docs: add playwright example skill for quick start

[keybrdist]

Summary

• Add a working playwright-example skill in .opencode/skill/ so users can test the plugin immediately after cloning
• Add Quick Start section to README with immediate test instructions
• Add Example Skill section with full code snippet and link to the actual file

Changes

File	Change
.opencode/skill/playwright-example/SKILL.md	New example skill with Playwright MCP
README.md	Quick Start section + Example Skill section

Testing

After merging, users can:

skill(name="playwright-example")
skill_mcp(mcp_name="playwright", tool_name="browser_navigate", arguments='{"url": "https://example.com"}')

[Copilot]

Pull request overview

This PR adds a working Playwright example skill to help users quickly test the plugin after installation. It includes comprehensive documentation in both the skill file and README to guide users through the quick start process.

Changes:

• Added a complete Playwright browser automation example skill with embedded MCP configuration
• Added Quick Start section with immediate test instructions for new users
• Added Example Skill section showcasing the skill structure and capabilities

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
.opencode/skill/playwright-example/SKILL.md	New example skill demonstrating browser automation with Playwright MCP, including detailed usage guidelines and example tasks
README.md	Added Quick Start section for immediate testing and Example Skill section with code snippet (simplified version of the actual skill file)

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[Copilot]

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

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[Copilot]

@keybrdist I've opened a new pull request, #5, to work on those changes. Once the pull request is ready, I'll request review from you.