add more submission encuragement -- alex

git-svn-id: svn://svn.oetiker.ch/rrdtool/branches/1.2/program@883 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/doc/cdeftutorial.pod b/doc/cdeftutorial.pod
index fc24a34..6a45ef4 100644 (file)
--- a/doc/cdeftutorial.pod
+++ b/doc/cdeftutorial.pod
@@ -4,8 +4,13 @@ cdeftutorial - Alex van den Bogaerdt's CDEF tutorial
 
 =head1 DESCRIPTION
 
-If you provide a question, I will try to provide an answer in the next
-release of this tutorial. No feedback equals no changes! Additions to
+Intention of this document: to provide some examples of the commonly
+used parts of RRDtool's CDEF language.
+
+If you think some important feature is not explained properly, and if
+adding it to this document would benefit most users, please do ask me
+to add it.  I will then try to provide an answer in the next release
+of this tutorial.  No feedback equals no changes! Additions to
 this document are also welcome.  -- Alex van den Bogaerdt
 E<lt>alex@ergens.op.het.netE<gt>