diff --git a/demos/plot.sh b/demos/plotutils/plot.sh
similarity index 90%
rename from demos/plot.sh
rename to demos/plotutils/plot.sh
index e33679b..740ab59 100755
--- a/demos/plot.sh
+++ b/demos/plotutils/plot.sh
@@ -4,8 +4,9 @@
 # This script plots certain properties of elements on the periodic table
 
 # Dependency: gnu plotutils https://pkgs.org/search/?q=plotutils
+# This package can be installed by running `apt install plotutils` on debian and its derivatives
 
-# To display the plot, use ./tek4010 demos/plot.sh
+# To display the plot, use ./tek4010 demos/plotuils/plot.sh
 
 # From top to bottom:
 #    - curl: download the periodic table data
diff --git a/demos/plotutils/readme b/demos/plotutils/readme
new file mode 100644
index 0000000..f0718fe
--- /dev/null
+++ b/demos/plotutils/readme
@@ -0,0 +1,4 @@
+This directory contains a plot demo using GNU plotutils.
+
+GNU plotutils is available on most linux distributions as `plotutils`.  
+On Raspberry Pi OS and other Debian derivatives, this package can be installed by `apt install plotutils`.