chore: address code review comments

Author: radkostanev

_contentTemplates/common/get-started.md

@@ -13,7 +13,7 @@
 
 ## Step 0: Download Telerik UI for Blazor
 
-* If you have already purchased a Telerik UI for Blazor commercial license, continue with the [next step and install a license key](#step-1-install-a-license-key).
+* If you have already purchased a commercial Telerik UI for Blazor license, continue with the [next step and install a license key](#step-1-install-a-license-key).
 
 * If you are new to UI for Blazor and haven't purchased a license yet, you can <a href="https://www.telerik.com/try/ui-for-blazor" target="_blank">Start a Free Trial</a> by downloading and installing the UI for Blazor components&mdash;this will activate your free trial and allow you to use the components. During the installation, select the **Set up Telerik NuGet package source** checkbox and the installer will configure the Telerik [online NuGet feed](slug:installation/nuget) automatically. You will use this feed later in the tutorial. 
 

introduction.md

@@ -214,7 +214,7 @@ Page Templates offer ready-to-use Blazor layouts that effectively integrate the
 
 ## Trial and Commercial License
 
-UI for Blazor is distributed as a single package, with functionality determined by the applied license. By default, you can register for a free 30-day trial to explore the full capabilities of the library and receive technical support. During the trial period, a visual watermark and banner will appear over rendered components.
+UI for Blazor comes as a single package for all license types—whether you have a trial or commercial license, you download the same file. By registering for a free 30-day trial, you can explore the full capabilities of the library and receive technical support.
 
 To use UI for Blazor commercially, you need to <a href="https://www.telerik.com/purchase/blazor-ui" target="_blank">purchase a license</a>. Feel free to review the Telerik UI for Blazor <a href="https://www.telerik.com/purchase/license-agreement/blazor-ui" target="_blank">License Agreement</a> and get acquainted with the full terms of use.
 

upgrade/overview.md

@@ -60,7 +60,7 @@ To upgrade the version of Telerik UI for Blazor you can use the [Upgrade Wizard]
 
 If you have just purchased a license and you need to migrate from the trial package to the licensed version, perform the following steps:
 
-1. After the purchase of a Commercial License, follow the steps in [Update your license key](slug:installation-license-key#license-key-updates).
+1. [Update your Telerik license key](slug:installation-license-key#license-key-updates) after you purchase or renew a license.
 
 1. To upgrade to the latest product version, follow the steps for [updating the Telerik UI for ASP.NET MVC version](#upgrading-to-new-versions).
 
@@ -76,7 +76,10 @@ While using a trial license, a watermark will be rendered over the components an
 
 > Purchase the Commercial Version now to get access to all product updates and the Telerik expert support.
 
-If you have a commercial license, but you still see the trial watermark and banner, then possible reasons may be that [Your license key must be updated](slug:installation-license-key#license-key-updates).
+If you have a commercial license, but you still see the trial watermark and banner, then make sure that:
+
+* Your [Telerik license key is installed correctly](slug:installation-license-key) and there are no [license key errors](slug:troubleshooting-license-key-errors) during build.
+* Your [Telerik license key is up-to-date](slug:installation-license-key#license-key-updates).
 
 ## See Also