I've not gotten into this sort of stuff before in C#, so I'm gonna leave a bit of code out of view, and let you solve yourself. (Mostly IDE code generation)
using System;
using System.Diagnostics;
public class DownloadStoreItems
{
public void DownloadLinks()
{
Process.Start("ms-windows-store://pdp/?PFN=NewspaperDirect.PressReader_f09x14bt6ejbt");
}
}
The above code is not at all what you'll need in it's entirety. This is just a simple thing to show you how you could load a website from C# code. Sorry this isn't much help.