Fix README.md JSON format examples to match implementation

[Copilot]

Pull Request

Description

The README.md contained incorrect JSON format examples that didn't match the actual VersionInfo implementation.

JSON Capture Output:

• Property names were kebab-case (job-id, versions) instead of PascalCase (JobId, Versions)
• Included non-existent timestamp field

Markdown Publish Output:

• Showed (All jobs) text and <sub> tags that don't exist in actual output
• Actual format: uniform versions show no job IDs; conflicts show separate bullets with parentheses

# Before (incorrect)
- **gcc**: 11.4.0 <sub>(windows-net8)</sub>, 13.2.0 <sub>(linux-net8)</sub>

# After (correct)
- **gcc**: 11.4.0 (windows-net8)
- **gcc**: 13.2.0 (linux-net8)

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Code quality improvement

Related Issues

N/A

Pre-Submission Checklist

Before submitting this pull request, ensure you have completed the following:

Build and Test

• Code builds successfully: dotnet build --configuration Release
• All unit tests pass: dotnet test --configuration Release
• Self-validation tests pass:
  dotnet run --project src/DemaConsulting.VersionMark --configuration Release --framework net10.0
--no-build -- --validate
• Code produces zero warnings

Code Quality

• Code formatting is correct: dotnet format --verify-no-changes
• New code has appropriate XML documentation comments
• Static analyzer warnings have been addressed

Quality Checks

Please run the following checks before submitting:

• Spell checker passes: cspell "**/*.{md,cs}"
• Markdown linter passes: markdownlint "**/*.md"
• YAML linter passes: yamllint '**/*.{yml,yaml}'

Testing

• Added unit tests for new functionality
• Updated existing tests if behavior changed
• All tests follow the AAA (Arrange, Act, Assert) pattern
• Test coverage is maintained or improved

Documentation

• Updated README.md (if applicable)
• Updated ARCHITECTURE.md (if applicable)
• Added code examples for new features (if applicable)
• Updated requirements.yaml (if applicable)

Additional Notes

Verified actual JSON/markdown output by running capture and publish commands. All 101 unit tests pass.

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