Update metadata rules and individual articles (#142)

* Add conceptual topic type for framework

* Add NET WPF article topic types

* Framework winforms overview topic types

* Update metadata

* Update walkthrough-my-first-wpf-desktop-application.md

dotnet-desktop-guide/net/wpf/data/data-binding-overview.md

@@ -4,6 +4,7 @@ description: Learn about the different data sources you can add to your project
 author: adegeo
 ms.date: 09/19/2019
 ms.author: adegeo
+ms.topic: overview
 dev_langs:
   - "csharp"
   - "vb"

dotnet-desktop-guide/net/wpf/fundamentals/styles-templates-create-apply-style.md

@@ -4,6 +4,7 @@ description: Learn how to create and reference a control style in Windows Presen
 author: adegeo
 ms.author: adegeo
 ms.date: 09/12/2019
+ms.topic: conceptual
 dev_langs:
   - "csharp"
   - "vb"

dotnet-desktop-guide/net/wpf/fundamentals/styles-templates-overview.md

@@ -4,6 +4,7 @@ description: Learn about XAML resources in Windows Presentation Foundation (WPF)
 author: adegeo
 ms.author: adegeo
 ms.date: 09/09/2019
+ms.topic: overview
 dev_langs: 
   - "csharp"
   - "vb"

dotnet-desktop-guide/net/wpf/fundamentals/xaml-resources-define.md

@@ -4,6 +4,7 @@ description: Learn about XAML resources in WPF for .NET Core. Understand the typ
 author: adegeo
 ms.author: adegeo
 ms.date: 08/21/2019
+ms.topic: overview
 ---
 
 # Overview of XAML resources

dotnet-desktop-guide/net/wpf/fundamentals/xaml.md

@@ -4,6 +4,7 @@ description: Learn how the XAML language is structured and implemented by Window
 author: adegeo
 ms.date: 08/08/2019
 ms.author: adegeo
+ms.topic: overview
 dev_langs:
   - "csharp"
   - "vb"

dotnet-desktop-guide/net/wpf/migration/convert-project-from-net-framework.md

@@ -4,6 +4,7 @@ description: Learn how to migrate a Windows Presentation Foundation (WPF) app to
 author: mjrousos
 ms.date: 09/12/2019
 ms.author: mikerou
+ms.topic: how-to
 ---
 
 # Migrating WPF apps to .NET Core

dotnet-desktop-guide/net/wpf/migration/differences-from-net-framework.md

@@ -4,6 +4,7 @@ description: Describes the differences between the .NET Framework implementation
 author: adegeo
 ms.date: 09/21/2019
 ms.author: adegeo
+ms.topic: conceptual
 ---
 
 # Differences in WPF

dotnet-desktop-guide/net/wpf/themes/how-to-create-apply-template.md

@@ -5,6 +5,7 @@ author: adegeo
 ms.author: adegeo
 ms.date: 11/15/2019
 no-loc: ["<Window>", "<ControlTemplate>", "<Ellipse>", "<ContentPresenter>", "<Trigger>", "<Setter>", "<PropertyTrigger>", "<Grid>", "<VisualStateManager.VisualStateGroups>", "<VisualStateGroup>", "<VisualState>", "<Storyboard>", "SizeToContent", "MinWidth", "TargetType", "Title"]
+ms.topic: how-to
 helpviewer_keywords: 
   - "control contract [WPF]"
   - "controls [WPF], visual structure changes"