[doc] Add brief reference to the chapter cubicweb-ctl tool.
--- a/doc/book/en/A02a-create-cube.en.txt Thu Apr 23 13:39:15 2009 -0700
+++ b/doc/book/en/A02a-create-cube.en.txt Thu Apr 23 13:46:57 2009 -0700
@@ -3,6 +3,10 @@
Create your cube
----------------
+The packages ``cubicweb`` and ``cubicweb-dev`` installs a command line tool
+for `CubicWeb` called ``cubicweb-ctl``. This tool provides a wide range of
+commands described in details in :ref:`cubicweb-ctl`.
+
Once your `CubicWeb` development environment is set up, you can create a new
cube::