mention alternatives in installation book chapter

Author: dbu

book/installation.rst

@@ -16,13 +16,15 @@ After that, you get a quick introduction of the bundles you have installed.
 This can be used to familiarize yourself with the CMF or as a starting point
 for a new custom application.
 
-.. note::
-
-    You can also install the CMF Sandbox, this is a more complete demo
-    instance of the Symfony CMF. You can view it online at `cmf.liip.ch`_.
-    You can also install it locally, so you can play with the code. For
-    installation instructions for the sandbox, please read
-    ":doc:`../cookbook/editions/cmf_sandbox`".
+This tutorial is aimed at people who want to get started with a project based
+on the Symfony CMF. There are two alternate articles in the cookbook you might
+want to look at, depending on what you need:
+
+* :doc:`../cookbook/editions/cmf_core` - a guide for adding the CMF to a standard
+  Symfony project.
+* :doc:`../cookbook/editions/cmf_sandbox` for instructions on how to install a
+  demonstration sandbox. The sandbox contains many examples of what you can do
+  with the CMF.
 
 Preconditions
 -------------