fix version

Author: mrbullwinkle

articles/cognitive-services/openai/reference.md

@@ -54,7 +54,7 @@ POST https://{your-resource-name}.openai.azure.com/openai/deployments/{deploymen
 
 **Supported versions**
 
-- `2023-03-14-preview` [Swagger spec](https://github.com/Azure/azure-rest-api-specs/blob/main/specification/cognitiveservices/data-plane/AzureOpenAI/inference/preview/2023-03-15-preview/inference.json)
+- `2023-03-15-preview` [Swagger spec](https://github.com/Azure/azure-rest-api-specs/blob/main/specification/cognitiveservices/data-plane/AzureOpenAI/inference/preview/2023-03-15-preview/inference.json)
 - `2022-12-01` [Swagger spec](https://github.com/Azure/azure-rest-api-specs/blob/main/specification/cognitiveservices/data-plane/AzureOpenAI/inference/stable/2022-12-01/inference.json)
 
 **Request body**
@@ -127,7 +127,7 @@ POST https://{your-resource-name}.openai.azure.com/openai/deployments/{deploymen
 
 **Supported versions**
 
-- `2023-03-14-preview` [Swagger spec](https://github.com/Azure/azure-rest-api-specs/blob/main/specification/cognitiveservices/data-plane/AzureOpenAI/inference/preview/2023-03-15-preview/inference.json)
+- `2023-03-15-preview` [Swagger spec](https://github.com/Azure/azure-rest-api-specs/blob/main/specification/cognitiveservices/data-plane/AzureOpenAI/inference/preview/2023-03-15-preview/inference.json)
 - `2022-12-01` [Swagger spec](https://github.com/Azure/azure-rest-api-specs/blob/main/specification/cognitiveservices/data-plane/AzureOpenAI/inference/stable/2022-12-01/inference.json)
 
 **Request body**
@@ -187,7 +187,7 @@ POST https://{your-resource-name}.openai.azure.com/openai/deployments/{deploymen
 
 **Supported versions**
 
-- `2023-03-14-preview` [Swagger spec](https://github.com/Azure/azure-rest-api-specs/blob/main/specification/cognitiveservices/data-plane/AzureOpenAI/inference/preview/2023-03-15-preview/inference.json)
+- `2023-03-15-preview` [Swagger spec](https://github.com/Azure/azure-rest-api-specs/blob/main/specification/cognitiveservices/data-plane/AzureOpenAI/inference/preview/2023-03-15-preview/inference.json)
 
 #### Example request