Update GitHub Desktop information

Author: fdmarcin

book/01-introduction/sections/installing.asc

@@ -65,11 +65,11 @@ Note that this is a project called Git for Windows, which is separate from Git i
 To get an automated installation you can use the https://chocolatey.org/packages/git[Git Chocolatey package].
 Note that the Chocolatey package is community maintained.
 
-Another easy way to get Git installed is by installing GitHub for Windows.
+Another easy way to get Git installed is by installing GitHub Desktop.
 The installer includes a command line version of Git as well as the GUI.
 It also works well with Powershell, and sets up solid credential caching and sane CRLF settings.(((Powershell)))(((CRLF)))(((credential caching)))
 We'll learn more about those things a little later, but suffice it to say they're things you want.
-You can download this from the GitHub for Windows website, at http://windows.github.com[].
+You can download this from the https://desktop.github.com/[GitHub Desktop website].
 
 ==== Installing from Source