Update README.md

lijin-THU · web-flow · commit 77a334eee2ef · 2017-04-11T17:02:10.000+08:00
diff --git a/README.md b/README.md
@@ -218,4 +218,4 @@ conda update anaconda
 
 觉得有用打赏一下？
 
-<img src="payment.jpg", width=20%/>
+![](payment.jpg)
