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

Author: santiagxf

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

@@ -11,12 +11,12 @@ author: santiagxf
 
     # [OpenAI](#tab/openai)
 
-      ```bash
-      pip install -U openai
-      ```
+    ```bash
+    pip install -U openai
+    ```
 
     # [Model Inference (preview)](#tab/inference)
 
-      ```bash
-      pip install -U azure-ai-inference
-      ```
+    ```bash
+    pip install -U azure-ai-inference
+    ```