diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -90,7 +90,7 @@ https://cdn-learn.adafruit.com/downloads/pdf/adafruit-i2s-mems-microphone-breako
 
 # Diagram
 ## sequence diagram for data transfer
-![materies/sequenceDiagram.PNG]
+![](materies/sequenceDiagram.PNG)
 
 ## FAQ
 ALSA Library : sound driver ; get data from sound card(Linux)