Merge pull request MicrosoftDocs#457 from nschonni/patch-2

typo: widows -> windows

Author: GitHubber17

docs/mfc/frame-windows.md

@@ -5,7 +5,7 @@ ms.date: "11/04/2016"
 ms.technology: ["cpp-mfc"]
 ms.topic: "conceptual"
 dev_langs: ["C++"]
-helpviewer_keywords: ["document frame windows [MFC]", "windows [MFC], MDI", "window classes [MFC], frame", "single document interface (SDI) [MFC]", "single document interface (SDI) [MFC], frame windows", "views [MFC], and frame windows", "CFrameWnd class [MFC], frame windows", "frame windows [MFC]", "frame windows [MFC], about frame widows", "MFC, frame windows", "MDI [MFC], frame windows", "splitter windows [MFC], and frame windows"]
+helpviewer_keywords: ["document frame windows [MFC]", "windows [MFC], MDI", "window classes [MFC], frame", "single document interface (SDI) [MFC]", "single document interface (SDI) [MFC], frame windows", "views [MFC], and frame windows", "CFrameWnd class [MFC], frame windows", "frame windows [MFC]", "frame windows [MFC], about frame windows", "MFC, frame windows", "MDI [MFC], frame windows", "splitter windows [MFC], and frame windows"]
 ms.assetid: 40677339-8135-4f5e-aba6-3fced3078077
 author: "mikeblome"
 ms.author: "mblome"