<a href="https://toxaura.com/chicago/impressions-face-body/" title="Impressions Face + Body — Botox injections in Chicago"><img src="https://toxaura.com/chicago/impressions-face-body/badge.svg" alt="Impressions Face + Body — Botox injections in Chicago" 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.