docs-sync Synchronizes documentation with implementation after completes. Purpose This skill automatically updates documentation to reflect the implemented features. It: - Updates README.md : Adds/updates usage section with implementation details - Updates CHANGELOG.md : Adds entries for new features and changes - Updates API docs : Synchronizes API documentation with contracts - Preserves user content : Content outside speckit markers is never modified Marker System docs-sync uses HTML comment markers to delineate auto-generated sections: Content outside these markers is preserved exactly as…