update docs for Preview 4

Author: marin-bratanov

_contentTemplates/common/get-started.md

@@ -82,6 +82,8 @@ To get access to the UI for Blazor components, follow these steps:
 
     **CSHTML**
 
+        @using Telerik.Blazor.Components.Button
+    
         <TelerikButton>Say Hello</TelerikButton>
         
 1. Optionally, hook up a click handler that will show a message. The resulting view should look like this:
@@ -90,6 +92,7 @@ To get access to the UI for Blazor components, follow these steps:
 
         @page "/"
         @using Microsoft.AspNetCore.Components
+        @using Telerik.Blazor.Components.Button
 
         <TelerikButton OnClick="@SayHelloHandler" Class="k-primary">Say Hello</TelerikButton>
 

getting-started/client-blazor.md

@@ -45,11 +45,6 @@ For client-side Blazor, we recommend the usage of `Blazor (ASP.NET Hosted)` proj
 
          ![Add Telerik Blazor Package to Client Project](images/add-telerik-nuget-to-client-app.png)
 
-1. Open the `_ViewImports.cshtml` at the root of the client web application and add the following line to register the Telerik components for the entire project:
-
-    **CSHTML**
-    
-        @addTagHelper *,Telerik.Blazor
         
 1. Open the `~/wwwroot/index.html` file in the client web application and register the [Theme stylesheet]({%slug general-information/themes%}) (make sure to use the correct version that matches the official Kendo UI for jQuery release number):
 
@@ -76,7 +71,7 @@ For client-side Blazor, we recommend the usage of `Blazor (ASP.NET Hosted)` proj
         }
 
 
-Now your project can use the Telerik UI for Blazor components in all its views.
+Now your project can use the Telerik UI for Blazor components.
 
 ## Add a Telerik Component to a View
 

getting-started/images/choose-project-template-server-blazor.png

@@ -45,11 +45,6 @@ To use Blazor server-side, you need to use the `Razor Components` type of projec
 
          ![Add Telerik Blazor Package to the project](images/add-telerik-nuget-to-server-app.png)
 
-1. Open the `~/Components/_ViewImports.cshtml` file and add the following line to register the Telerik components for all component files:
-
-    **CSHTML**
-    
-        @addTagHelper *,Telerik.Blazor
         
 1. Open the `~/Pages/Index.cshtml` and register the [Theme stylesheet]({%slug general-information/themes%}) (note the escaping for the `@` symbol):
 
@@ -77,7 +72,7 @@ To use Blazor server-side, you need to use the `Razor Components` type of projec
 
 
 
-Now your project can use the Telerik UI for Blazor components in all its component files.
+Now your project can use the Telerik UI for Blazor components.
 
 ## Add a Telerik Component to a View