updated readme doc

Author: Mike Shi

scenarios/evaluate/Azure_OpenAI_Graders/README.md

@@ -5,7 +5,7 @@ languages:
 products:
 - ai-services
 - azure-openai
-description: Evaluate AI agents with Azure AI Evaluation SDK
+description: Evaluate using Azure OpenAI Graders with Azure AI Foundry SDK
 ---