diff --git a/plantStructC4.adoc b/plantStructC4.adoc
index 15db094..15ebf37 100644
--- a/plantStructC4.adoc
+++ b/plantStructC4.adoc
@@ -16,6 +16,8 @@ Shows the graphic form (png) below the text entry area
 
 image::images/simple-00.png[]
 
+- - -
+
 Exercise 1: Add a reply from Alice to Bob
 
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