Update cognitive-search-skill-image-analysis.md

Improving language for support clarification.

Author: gmndrg

articles/search/cognitive-search-skill-image-analysis.md

@@ -23,7 +23,7 @@ This skill uses the machine learning models provided by [Azure AI Vision](../ai-
 + The file size of the image must be less than 4 megabytes (MB)
 + The dimensions of the image must be greater than 50 x 50 pixels
 
-Currently, AI Search calls the AI Image Analysis version 3.2. If your solution requires calling a newer version of that service, consider implementing through [Web API custom skill](cognitive-search-custom-skill-web-api.md).
+This skill is implemented using the [AI Image Analysis API](../ai-services/computer-vision/overview-image-analysis.md) version 3.2. If your solution requires calling a newer version of that service API (such as version 4.0), consider implementing through [Web API custom skill](cognitive-search-custom-skill-web-api.md).
 
 > [!NOTE]
 > This skill is bound to Azure AI services and requires [a billable resource](cognitive-search-attach-cognitive-services.md) for transactions that exceed 20 documents per indexer per day. Execution of built-in skills is charged at the existing [Azure AI services pay-as-you go price](https://azure.microsoft.com/pricing/details/cognitive-services/).