🔧 Update sponsor Fern (#9979)

README.md

@@ -48,7 +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.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.svg"></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

@@ -7,7 +7,7 @@ gold:
     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
+    img: https://fastapi.tiangolo.com/img/sponsors/fern.svg
 silver:
   - url: https://www.deta.sh/?ref=fastapi
     title: The launchpad for all your (team's) ideas

docs/en/docs/advanced/generate-clients.md

@@ -12,6 +12,11 @@ A common tool is <a href="https://openapi-generator.tech/" class="external-link"
 
 If you are building a **frontend**, a very interesting alternative is <a href="https://github.com/ferdikoomen/openapi-typescript-codegen" class="external-link" target="_blank">openapi-typescript-codegen</a>.
 
+Another option you could consider for several languages is <a href="https://www.buildwithfern.com/?utm_source=tiangolo&utm_medium=website&utm_campaign=docs-generate-clients" class="external-link" target="_blank">Fern</a>.
+
+!!! info
+    <a href="https://www.buildwithfern.com/?utm_source=tiangolo&utm_medium=website&utm_campaign=docs-generate-clients" class="external-link" target="_blank">Fern</a> is also a FastAPI sponsor. 😎🎉
+
 ## Generate a TypeScript Frontend Client
 
 Let's start with a simple FastAPI application:

docs/en/docs/alternatives.md

@@ -119,6 +119,8 @@ That's why when talking about version 2.0 it's common to say "Swagger", and for
 
     These two were chosen for being fairly popular and stable, but doing a quick search, you could find dozens of additional alternative user interfaces for OpenAPI (that you can use with **FastAPI**).
 
+    For example, you could try <a href="https://www.buildwithfern.com/?utm_source=tiangolo&utm_medium=website&utm_campaign=docs-alternatives" class="external-link" target="_blank">Fern</a> which is also a FastAPI sponsor. 😎🎉
+
 ### Flask REST frameworks
 
 There are several Flask REST frameworks, but after investing the time and work into investigating them, I found that many are discontinued or abandoned, with several standing issues that made them unfit.

docs/en/overrides/main.html

@@ -37,7 +37,7 @@
     <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" />
+        <img class="sponsor-image" src="/img/sponsors/fern-banner.svg" />
       </a>
     </div>
   </div>