🔧 Update sponsors, add Fern (#9956)

README.md

@@ -48,6 +48,7 @@ The key features are:
 
 <a href="https://cryptapi.io/" target="_blank" title="CryptAPI: Your easy to use, secure and privacy oriented payment gateway."><img src="https://fastapi.tiangolo.com/img/sponsors/cryptapi.svg"></a>
 <a href="https://platform.sh/try-it-now/?utm_source=fastapi-signup&utm_medium=banner&utm_campaign=FastAPI-signup-June-2023" target="_blank" title="Build, run and scale your apps on a modern, reliable, and secure PaaS."><img src="https://fastapi.tiangolo.com/img/sponsors/platform-sh.png"></a>
+<a href="https://www.buildwithfern.com/?utm_source=tiangolo&utm_medium=website&utm_campaign=main-badge" target="_blank" title="Fern | SDKs and API docs"><img src="https://fastapi.tiangolo.com/img/sponsors/fern.png"></a>
 <a href="https://www.deta.sh/?ref=fastapi" target="_blank" title="The launchpad for all your (team's) ideas"><img src="https://fastapi.tiangolo.com/img/sponsors/deta.svg"></a>
 <a href="https://training.talkpython.fm/fastapi-courses" target="_blank" title="FastAPI video courses on demand from people you trust"><img src="https://fastapi.tiangolo.com/img/sponsors/talkpython.png"></a>
 <a href="https://testdriven.io/courses/tdd-fastapi/" target="_blank" title="Learn to build high-quality web apps with best practices"><img src="https://fastapi.tiangolo.com/img/sponsors/testdriven.svg"></a>

docs/en/data/sponsors.yml

@@ -5,6 +5,9 @@ gold:
   - url: https://platform.sh/try-it-now/?utm_source=fastapi-signup&utm_medium=banner&utm_campaign=FastAPI-signup-June-2023
     title: "Build, run and scale your apps on a modern, reliable, and secure PaaS."
     img: https://fastapi.tiangolo.com/img/sponsors/platform-sh.png
+  - url: https://www.buildwithfern.com/?utm_source=tiangolo&utm_medium=website&utm_campaign=main-badge
+    title: Fern | SDKs and API docs
+    img: https://fastapi.tiangolo.com/img/sponsors/fern.png
 silver:
   - url: https://www.deta.sh/?ref=fastapi
     title: The launchpad for all your (team's) ideas

docs/en/overrides/main.html

@@ -34,6 +34,12 @@
         <img class="sponsor-image" src="/img/sponsors/platform-sh-banner.png" />
       </a>
     </div>
+    <div class="item">
+      <a title="Fern | SDKs and API docs" style="display: block; position: relative;" href="https://www.buildwithfern.com/?utm_source=tiangolo&utm_medium=website&utm_campaign=top-banner" target="_blank">
+        <span class="sponsor-badge">sponsor</span>
+        <img class="sponsor-image" src="/img/sponsors/fern-banner.png" />
+      </a>
+    </div>
   </div>
 </div>
 {% endblock %}