diff --git a/graphviz/readme.md b/graphviz/readme.md
index 408485d..3ba5307 100644
--- a/graphviz/readme.md
+++ b/graphviz/readme.md
@@ -3,5 +3,7 @@
 ```
 docker build -t graphviz .
 docker run -p8000:8000 graphviz
+
+curl localhost:8000/viz.svg -F dot=@test.dot
 ```
 Based on https://github.com/sseemayer/docker-graphviz