Update mvc.md (#20227)

When you create Asp.Net Core Web Application project, the name of the project is given as ASP.NET Web Core Web Application. In Visual studio, the project display name is ASP.NET Core Web Application. I just updated it to the correct name.

Author: sreejukg

aspnetcore/migration/mvc.md

@@ -41,7 +41,7 @@ Create a new solution with a new ASP.NET Core project to migrate to:
 
 1. Launch a second instance of Visual Studio.
 1. From the **File** menu, select **New** > **Project**.
-1. Select **ASP.NET Web Core Web Application** and then select **Next**.
+1. Select **ASP.NET Core Web Application** and then select **Next**.
 1. In the **Configure your new project** dialog, Name the project *WebApp1*.
 1. Set the location to a different directory than the previous project to use the same project name. Using the same namespace makes it easier to copy code between the two projects. Select **Create**.
 1. In the **Create a new ASP.NET Core Web Application** dialog, confirm that **.NET Core** and **ASP.NET Core 3.1** are selected. Select the **Web Application (Model-View-Controller)** project template, and select **Create**.