Update README.md

dpsanders · web-flow · commit 24f41c66a49d · 2017-01-27T06:41:43.000-05:00
diff --git a/README.md b/README.md
@@ -20,6 +20,8 @@ Julia expression, for example
 ```
 @tree x^2 + y^2
 ```
+which gives the following output:
+![example_tree](example_tree.png)
 
 See [this notebook](examples/TreeView.ipynb) for usage examples.
 
