Document how to get rid of the console window
<sect1>
<title>
+Avoiding the console window</title>
+
+<para>By default GHC builds applications that open a console window when they start.
+If you want to build a GUI-only application, with no console window, use the flag
+<literal>-optl-mwindows</literal> in the link step.
+</para>
+</sect1>
+
+<sect1>
+<title>
Using GHC (and other GHC-compiled executables) with cygwin</title>
<sect2>