Update xaml-designer-extensibility-migration.md

Nukepayload2 · web-flow · commit 4a54a642e692 · 2019-07-09T10:34:58.000+08:00
diff --git a/docs/extensibility/xaml-designer-extensibility-migration.md b/docs/extensibility/xaml-designer-extensibility-migration.md
@@ -1,6 +1,6 @@
 ---
 title: XAML Designer Extensibility Migration
-ms.date: 04/17/2019
+ms.date: 07/09/2019
 ms.topic: conceptual
 author: lutzroeder
 ms.author: lutzr
