Update doc for OpenAI Instrumentation to support DeepSeek

Author: gyliu513

Diff for: CHANGELOG.md

@@ -13,6 +13,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- `opentelemetry-instrumentation-openai-v2` Update doc for OpenAI Instrumentation to support DeepSeek
+  ([#3279](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3279))
 - `opentelemetry-instrumentation-botocore` Add support for GenAI user events and lazy initialize tracer
   ([#3258](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3258))
 - `opentelemetry-instrumentation-botocore` Add support for GenAI system events

Diff for: instrumentation-genai/opentelemetry-instrumentation-openai-v2/README.rst

@@ -10,6 +10,10 @@ This library allows tracing LLM requests and logging of messages made by the
 `OpenAI Python API library <https://pypi.org/project/openai/>`_. It also captures
 the duration of the operations and the number of tokens used as metrics.
 
+This instrumentation also works with OpenAI compatible platforms include the following:
+
+- DeepSeek
+- Azure OpenAI
 
 Installation
 ------------