Update ropc-custom.md

fixes https://github.com/MicrosoftDocs/azure-docs/issues/50330

Author: yoelhor

articles/active-directory-b2c/ropc-custom.md

@@ -9,7 +9,7 @@ manager: celestedg
 ms.service: active-directory
 ms.workload: identity
 ms.topic: conceptual
-ms.date: 02/27/2020
+ms.date: 04/01/2020
 ms.author: mimart
 ms.subservice: B2C
 ---