[PATCH] add a link to the diagram code

[Nis Martensen]

---
 src/tutorial.mdwn |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/src/tutorial.mdwn b/src/tutorial.mdwn
index 36f3082..54d2ce1 100644
--- a/src/tutorial.mdwn
+++ b/src/tutorial.mdwn
@@ -608,6 +608,9 @@ width.
 
 This wraps up the tutorial. It doesn't cover all functions in cairo, so
 for some "advanced" lesser-used features, you'll need to look elsewhere.
+The code behind the examples (<a href="diagram.c">layer diagrams</a>)
+uses a handful of techniques that aren't described within, so analyzing
+them may be a good first step.
 Other [[examples]] on cairographics.org lead in different directions. As
 with everything, there's a large gap between knowing the rules of the
 tool, and being able to use it well. The final section of this document
-- 
1.5.3.rc6.17.g1911


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