Update and rename how-to-prerequisites-python.md to how-to-prerequisites-openai-python.md

Author: santiagxf

articles/ai-foundry/model-inference/includes/how-to-prerequisites-python.md renamed to articles/ai-foundry/model-inference/includes/how-to-prerequisites-openai-python.md

@@ -7,8 +7,20 @@ ms.author: fasantia
 author: santiagxf
 ---
 
+# [OpenAI](#tab/openai)
+
+* Install the OpenAI SDK with the following command:
+
+  ```bash
+  pip install -U openai
+  ```
+
+# [Model Inference (preview)](#tab/inference)
+
 * Install the [Azure AI inference package for Python](https://aka.ms/azsdk/azure-ai-inference/python/reference) with the following command:
 
   ```bash
   pip install -U azure-ai-inference
   ```
+
+---