[jhbuild] Simple example of how to use the 'branches' variable in .jhbuildrc

[Federico Mena Quintero <federico src gnome org>]

commit 34c1193de514a95144620b05e53080508e514df1
Author: Federico Mena Quintero <federico gnome org>
Date:   Mon Mar 7 12:32:06 2011 -0600

    Simple example of how to use the 'branches' variable in .jhbuildrc
    
    Signed-off-by: Federico Mena Quintero <federico gnome org>

 doc/C/jhbuild.xml |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/doc/C/jhbuild.xml b/doc/C/jhbuild.xml
index b7ff290..e01e5c8 100644
--- a/doc/C/jhbuild.xml
+++ b/doc/C/jhbuild.xml
@@ -1569,6 +1569,12 @@ libgnomecanvas is missing branch definition for gnome-2-20
                   repository (or the None value) and the second part the name of
                   the branch. E.g. <literal>('git://git.example.net/project',
                   'gnome-2-28')</literal></simpara>
+		<example>
+		  <title>Simple example</title>
+		  <programlisting>
+		    branches['modulename'] = (None, 'branchname')
+		  </programlisting>
+		</example>
               </listitem>
               <listitem>
                 <simpara>Subversion: URI of module branch E.g.