- Add TOML configuration section to plugins-library index explaining usage
- Add TOML config tables to all official plugin documentation files
- Standardize TOML section format across plugins with config_file_path parameter
- Update system-metrics plugin moved from examples to official
- Remove redundant config_file_path from individual parameter tables
- Ensure consistent placement before Installation/Requirements sections
- Fix linting: replace 'e.g.' with 'for example' in system-metrics.md
This completes the TOML configuration documentation updates from PR 6244