Update README.md

README.md

@@ -12,7 +12,7 @@ This is a solution template for creating a Razor Page App with ASP.NET Core foll
 
 [![Clean Architecture with ASP.NET Core 7.0 • Jason Taylor • GOTO 2019](https://img.youtube.com/vi/dK4Yb6-LxAk/0.jpg)](https://www.youtube.com/watch?v=dK4Yb6-LxAk)
 
-## Demonstration(http://razor.i247365.net/)
+## Demonstration( https://commercial.blazorserver.com/)
 
 [![Clean Architecture Solution For Razor Page Development](https://github.com/neozhu/RazorPageCleanArchitecture/blob/main/doc/screenshot/2021-08-11_19-28-59.png?raw=true)](https://www.youtube.com/watch?v=RzyctNiJ6gk)
 ![](/doc/screenshot/upload.png)