Adding custom tag for content recommendation (SharePoint#4844)

* Update set-up-your-developer-tenant.md

* Update set-up-your-development-environment.md

* Update build-a-hello-world-web-part.md

* Update connect-to-sharepoint.md

* Update serve-your-web-part-in-a-sharepoint-page.md

* Update hosting-webpart-from-office-365-cdn.md

* Update add-jqueryui-accordion-to-web-part.md

* Update use-fabric-react-components.md

* Update provision-sp-assets-from-package.md

* Update build-a-hello-world-extension.md

* Update serving-your-extension-from-sharepoint.md

* Update hosting-extension-from-office365-cdn.md

* Update building-simple-field-customizer.md

* Update building-simple-cmdset-with-dialog-api.md

* Update using-page-placeholder-with-extensions.md

Author: nokafor

docs/spfx/extensions/get-started/build-a-hello-world-extension.md

@@ -4,6 +4,7 @@ description: Create an extension project, and then code and debug your Applicati
 ms.date: 11/8/2018
 ms.prod: sharepoint
 localization_priority: Priority
+ms.custom: scenarios:getting-started
 ---
 
 

docs/spfx/extensions/get-started/building-simple-cmdset-with-dialog-api.md

@@ -3,6 +3,7 @@ title: Build your first ListView Command Set extension
 description: Create an extension project, and then code and debug your extension by using SharePoint Framework (SPFx) Extensions.
 ms.date: 03/14/2019
 ms.prod: sharepoint
+ms.custom: scenarios:getting-started
 ---
 
 # Build your first ListView Command Set extension

docs/spfx/extensions/get-started/building-simple-field-customizer.md

@@ -3,6 +3,7 @@ title: Build your first Field Customizer extension
 description: Create an extension project, and then code and debug your extension by using SharePoint Framework (SPFx) Extensions.
 ms.date: 03/14/2019
 ms.prod: sharepoint
+ms.custom: scenarios:getting-started
 ---
 
 # Build your first Field Customizer extension

docs/spfx/extensions/get-started/hosting-extension-from-office365-cdn.md

@@ -4,6 +4,7 @@ description: Deploy your SharePoint Framework Application Customizer to be hoste
 ms.date: 08/27/2018
 ms.prod: sharepoint
 localization_priority: Priority
+ms.custom: scenarios:getting-started
 ---
 
 # Host extension from Office 365 CDN (Hello World part 4)

docs/spfx/extensions/get-started/serving-your-extension-from-sharepoint.md

@@ -4,6 +4,7 @@ description: Deploy your SharePoint Framework Application Customizer to SharePoi
 ms.date: 11/8/2018
 ms.prod: sharepoint
 localization_priority: Priority
+ms.custom: scenarios:getting-started
 ---
 
 # Deploy your extension to SharePoint (Hello World part 3)

docs/spfx/extensions/get-started/using-page-placeholder-with-extensions.md

@@ -3,6 +3,7 @@ title: Use page placeholders from Application Customizer (Hello World part 2)
 description: Extend your Hello World extension to take advantage of page placeholders by using SharePoint Framework (SPFx) Extensions. 
 ms.date: 03/14/2019
 ms.prod: sharepoint
+ms.custom: scenarios:getting-started
 ---
 
 # Use page placeholders from Application Customizer (Hello World part 2)

docs/spfx/set-up-your-developer-tenant.md

@@ -4,6 +4,7 @@ description: Build and deploy client-side web parts using the SharePoint Framewo
 ms.date: 08/20/2018
 ms.prod: sharepoint
 localization_priority: Priority
+ms.custom: scenarios:getting-started
 ---
 
 

docs/spfx/set-up-your-development-environment.md

@@ -4,6 +4,7 @@ description: Use Visual Studio or your own custom development environment to bui
 ms.date: 08/20/2018
 ms.prod: sharepoint
 localization_priority: Priority
+ms.custom: scenarios:getting-started
 ---
 
 

docs/spfx/web-parts/get-started/add-jqueryui-accordion-to-web-part.md

@@ -4,6 +4,7 @@ description: Adding the jQueryUI Accordion to your web part project involves cre
 ms.date: 11/08/2018
 ms.prod: sharepoint
 localization_priority: Priority
+ms.custom: scenarios:getting-started
 ---
 
 

docs/spfx/web-parts/get-started/build-a-hello-world-web-part.md

@@ -3,6 +3,7 @@ title: Build your first SharePoint client-side web part (Hello World part 1)
 description: Create a new web part project and preview it.
 ms.date: 03/14/2019
 ms.prod: sharepoint
+ms.custom: scenarios:getting-started
 ---
 
 # Build your first SharePoint client-side web part (Hello World part 1)