Update GettingStartedDeb.md

Remove the extra text and put apt-get install into the main instructions.

Author: glennc

GettingStartedDeb.md

@@ -25,11 +25,9 @@ To get these builds you need to run:
 sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
 echo "deb http://download.mono-project.com/repo/debian wheezy main" | sudo tee /etc/apt/sources.list.d/mono-xamarin.list
 sudo apt-get update
+sudo apt-get install Mono-Complete
 ```
 
-After that either `apt-get upgrade` or `apt-get install Mono-Complete` depending on whether you have Mono installed already.
-
-
 ### Get libuv
 
 [Libuv](https://github.com/libuv/libuv) is a multi-platform asynchronous IO library that is used by the [KestrelHttpServer](https://github.com/aspnet/KestrelHttpServer) that we will use to host our web applications.