Link to ASP.NET Core docs (#7840)

Author: Daniel15

docusaurus/docs/integrating-with-an-api-backend.md

@@ -23,3 +23,8 @@ You can find the companion GitHub repository [here](https://github.com/fullstack
 It allows creating hypermedia and GraphQL APIs in minutes.
 It is shipped with an official Progressive Web App generator as well as a dynamic administration interface, both built for Create React App.
 Check out [this tutorial](https://api-platform.com/docs/distribution).
+
+
+## C# (ASP.NET Core)
+
+ASP.NET Core has a React project template that uses Create React App. Check out [their documentation](https://docs.microsoft.com/en-us/aspnet/core/client-side/spa/react).