diff --git a/readme.md b/readme.md
index 18d8b95c..e5abb27d 100644
--- a/readme.md
+++ b/readme.md
@@ -85,6 +85,6 @@ Note that this exmample did not handle potential errors.
 
 The following diagram shows the process.
 
-[simpledom](doc/diagram/simpledom.png)
+![simpledom](doc/diagram/simpledom.png?raw=true)
 
 More [examples](example/) are avaliable.