adding bullet point

Author: aahill

articles/ai-services/content-safety/overview.md

@@ -7,7 +7,7 @@ author: PatrickFarley
 manager: nitinme
 ms.service: azure-ai-content-safety
 ms.topic: overview
-ms.date: 02/21/2025
+ms.date: 02/27/2025
 ms.author: pafarley
 keywords: content safety, Azure AI Content Safety, online content safety, content filtering software, content moderation service, content moderation
 ms.custom: references_regions, build-2023, build-2023-dataai
@@ -136,6 +136,7 @@ See the following list for the input requirements for each feature.
 - **Groundedness detection API (preview)**: 
   - Maximum length for grounding sources: 55,000 characters (per API call).
   - Maximum text and query length: 7,500 characters.
+  - Minimum text and query length: 3 words.
 - **Protected material detection APIs**: 
   - Default maximum length: 10K characters.
   - Default minimum length: 110 characters (for scanning LLM completions, not user prompts).