Update file-nesting-solution-explorer.md

Update the note at the beginning of file-nesting-solution-explorer.md to reflect that the feature is now supported for all .NET Core projects, but only on by default for ASP.NET Core.

Author: tmeschter

docs/ide/file-nesting-solution-explorer.md

@@ -19,7 +19,7 @@ ms.technology: vs-ide-general
 **Solution Explorer** nests related files to help organize them and make them easier to locate. For example, if you add a Windows Forms form to a project, the code file for the form is nested below the form in **Solution Explorer**. In ASP.NET Core projects, file nesting can be taken a step further. You can choose between the file nesting presets **Off**, **Default**, and **Web**. You can also [customize how files are nested](#customize-file-nesting) or [create solution-specific and project-specific settings](#create-project-specific-settings).
 
 > [!NOTE]
-> The feature is currently only supported for ASP.NET Core projects.
+> The feature is supported for all .NET Core projects, but is only on by default for ASP.NET Core projects.
 
 ## File nesting options