Please add a line highlighter

Thank you for plugin,

Do you can add a line highlighter like at my blog? (7 line, and 1 line) at here https://proinsurer.com.ua/en/235-solved-how-to-upgrade-python-2-7-to-python-3-on-your-mac

Thank you for plugin

The page I need help with: [log in to see the link]