Update concept-invoice.md

Author: sanjeev3

articles/applied-ai-services/form-recognizer/concept-invoice.md

@@ -14,7 +14,7 @@ recommendations: false
 ---
 <!-- markdownlint-disable MD033 -->
 
-# Form Recognizer invoice model
+# Automated invoice processing
 
 [!INCLUDE [applies to v3.0 and v2.1](includes/applies-to-v3-0-and-v2-1.md)]