Fix broken doc link (#3653)

# Description

Please add an informative description that covers that changes made by
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Signed-off-by: Brynn Yin <biyi@microsoft.com>

docs/reference/tools-reference/llm-tool.md

@@ -25,7 +25,7 @@ Create OpenAI resources, Azure OpenAI resources or MaaS deployment with the LLM
 
 - **MaaS deployment**
 
-    Create MaaS deployment for models in Azure AI Studio model catalog with [instruction](https://learn.microsoft.com/en-us/azure/ai-studio/concepts/deployments-overview#deploy-models-with-model-as-a-service-maas)
+    Create MaaS deployment for models in Azure AI Studio model catalog with [instruction](https://learn.microsoft.com/azure/ai-studio/concepts/deployments-overview#deploy-models-as-serverless-apis)
 
     You can create serverless connection to use this MaaS deployment.