<a href="https://deskloft.org/indianapolis/the-annex-by-refinery46/" title="The Annex by Refinery46 — Coworking Spaces in Indianapolis"><img src="https://deskloft.org/indianapolis/the-annex-by-refinery46/badge.svg" alt="The Annex by Refinery46 — Coworking Spaces in Indianapolis" 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.