diff --git a/Density coloured scatterplots with ggplot2/README.md b/Density coloured scatterplots with ggplot2/README.md
index 8b137891791fe96927ad78e64b0aad7bded08bdc..195d9455e53d9e0e1862129e71e42dae5b4159d7 100644
--- a/Density coloured scatterplots with ggplot2/README.md	
+++ b/Density coloured scatterplots with ggplot2/README.md	
@@ -1 +1,10 @@
+# Density coloured scatter plots to avoid overplotting
+
+Any time.
+
+Running the included example from the R script leads to this image:
+
+![xyplot](<./xyplot_density.png> "X, Y scatterplot with density information")
+
+The result will need further adjustments, in Inkscape.