<a href="https://evchargingsetup.com/portland-me/red-e-charging-station/" title="Red E Charging Station — ev charger installation in Portland"><img src="https://evchargingsetup.com/portland-me/red-e-charging-station/badge.svg" alt="Red E Charging Station — ev charger installation in Portland" width="300" height="84"></a>

Paste it into your website — most site builders (Wix, Squarespace, WordPress) have an "embed code" or "custom HTML" block. The footer is a good spot.