Update README.md

README.md

@@ -138,5 +138,5 @@ The two details screens show how to use headings, labels, and whitespace to orga
 - [Http client](https://msdn.microsoft.com/windows/uwp/networking/httpclient)
 - [Screen sizes and breakpoints](https://msdn.microsoft.com/windows/uwp/layout/screen-sizes-and-breakpoints-for-responsive-design)
 - [Define layouts with XAML](https://msdn.microsoft.com/windows/uwp/layout/layouts-with-xaml)
-- [Master/details pattern](https://msdn.microsoft.com/en-us/windows/uwp/controls-and-patterns/master-details)
+- [Master/details pattern](https://msdn.microsoft.com/windows/uwp/controls-and-patterns/master-details)