Added documentation link for Hot Chocolate

README.md

@@ -19,7 +19,9 @@ If you’re interested in working on support for other GraphQL servers, or integ
 - [Scala](https://github.com/sangria-graphql/sangria-slowlog#apollo-tracing-extension)
 - [Java](https://github.com/graphql-java/graphql-java/pull/577)
 - [Elixir](https://github.com/sikanhe/apollo-tracing-elixir)
-- [.NET](https://graphql-dotnet.github.io/docs/getting-started/metrics)
+- .NET
+  - [graphql-dotnet](https://graphql-dotnet.github.io/docs/getting-started/metrics)
+  - [Hot Chocolate](https://hotchocolate.io/docs/apollo-tracing)
 
 ## Response Format