message: Add link to home from api docs
diff: <body>
  <div class="nav">
  <div class="nav-content">
  + <a href="/" target="_blank" rel="noopener noreferrer">
  <img src="https://artifacthub.io/static/media/logo/artifacthub-brand-white.svg" alt="Artifact Hub logo" />
  + </a>
  </div>
  </div>
  <div id="swagger-ui"></div>
  