add Azure model docs

vizro-ai/docs/pages/user_guides/model_config.md

@@ -48,9 +48,9 @@ and [pricing](https://openai.com/pricing) for more information.
 ### Azure OpenAI models
 
 The setup below allows you to integrate Azure's OpenAI models with VizroAI, by simply updating the `llm_to_use` attribute in `VizroAI`.
-To set up Azure OpenAI with Langchain, you'll configure the AzureOpenAI instance by specifying your deployment name and model name. 
-Environment variables for API configuration, such as `OPENAI_API_BASE`, `AZURE_OPENAI_API_KEY`, and optionally `AZURE_OPENAI_LOCATION` for regional endpoints, must be set. 
-Authentication can be done via an API key directly or through Azure Active Directory (AAD) for enhanced security. 
+To set up Azure OpenAI with Langchain, you'll configure the AzureOpenAI instance by specifying your deployment name and model name.
+Environment variables for API configuration, such as `OPENAI_API_BASE`, `AZURE_OPENAI_API_KEY`, and optionally `AZURE_OPENAI_LOCATION` for regional endpoints, must be set.
+Authentication can be done via an API key directly or through Azure Active Directory (AAD) for enhanced security.
 For a detailed walkthrough, refer to the Langchain documentation directly.
 https://python.langchain.com/docs/integrations/llms/azure_openai