Added the link to the example of pdf.

diff --git a/README.md b/README.md
index c641e03..7a6e11d 100644 (file)
--- a/README.md
+++ b/README.md
@@ -110,7 +110,7 @@ Print the list of nodes.
 
 Save a dot file to be used by the Graphviz set of tools for graph
 visualization. This dot file can than be used for instance to produce
-a pdf file with
+a pdf file such as [this one](https://fleuret.org/git-extract/dagnn/graph.pdf) with
 
 ```
 dot graph.dot -T pdf -o graph.pdf