Explain OpenAIOkHttpClientAsync (In JavaDoc and in README)

[stargazer33]

I am thinking about using this library in async. way.
I see com.openai.client.okhttp.OpenAIOkHttpClientAsync

Would be great to have explanation and example of async calls.

First of all: async. calls to /chat/completion API

[TomerAberbach]

Yes, agreed we should have documentation on async in the README!

For now, you can construct the client the same way and then call async() to swap to async client. Then pretty much all the methods and parameters and response types are the same. The only difference is whether CompletableFuture is returned or AsyncStreamResponse (instead of just StreamResponse). Should be mostly self-explanatory for now, but let me know if you encounter any specific confusions and I can make sure those are included in the documentation when we tackle that