set sponsor to h3 (md)
<a href="https://www.producthunt.com/posts/awesome-go?utm_source=badge-featured&utm_medium=badge&utm_souce=badge-awesome-go" target="_blank"><img src="https://api.producthunt.com/widgets/embed-image/v1/featured.svg?post_id=291535&theme=light" alt="awesome-go - Curated list awesome Go frameworks, libraries and software | Product Hunt" style="width: 250px; height: 54px;" width="250" height="54" /></a>
-## Sponsorships
+### Sponsorships
[![Doppler](https://github.com/avelino/awesome-go/raw/main/tmpl/assets/sponsors/doppler.png)](https://www.doppler.com/?utm_campaign=github_repo&utm_medium=referral&utm_content=awesomego&utm_source=github)
