diff --git a/doc/README.md b/doc/README.md
index 1847502..7c90413 100644
--- a/doc/README.md
+++ b/doc/README.md
@@ -68,6 +68,20 @@ export DISPLAY=":0.0"
 
 ```
 
+
+## notes
+
+Monitor files while developing to restart Processing sketch on save with `entr`. After running the sketch in one terminal with `processing-runsketch_IF3.sh`, in another terminal run something like 
+```
+ls PROJECTS/IF3Si/pde/IF3Si/*.pde | entr killall /home/random/src/processing-2.2.1/java/bin/java
+```
+
+
+
+
+
+
+
 .