(docs) using proxy

Author: ishaan-jaff

README.md

@@ -91,9 +91,17 @@ $ litellm --model huggingface/bigcode/starcoder
 
 ### Step 2: Replace openai base
 ```python
-import openai
-client = openai.OpenAI(api_key="anything", base_url="http://0.0.0.0:8000")
-print(openai.chat.completions.create(model="test", messages=[{"role":"user", "content":"Hey!"}]))
+import openai # openai v1.0.0+
+client = openai.OpenAI(api_key="anything",base_url="http://0.0.0.0:8000") # set proxy to base_url
+# request sent to model set on litellm proxy, `litellm --model`
+response = client.chat.completions.create(model="gpt-3.5-turbo", messages = [
+    {
+        "role": "user",
+        "content": "this is a test request, write a short poem"
+    }
+])
+
+print(response)
 ```
 
 ## Logging Observability ([Docs](https://docs.litellm.ai/docs/observability/callbacks))