Update README.md

MatrixAge · web-flow · commit da2bd5e973d2 · 2020-04-03T17:02:18.000+08:00
diff --git a/README.md b/README.md
@@ -18,7 +18,6 @@ https://matrixage.github.io/testool/
 ## Preview
 
 ![preview_img](https://s1.ax1x.com/2020/04/03/GUSTPA.png)
-![preview_img](https://s1.ax1x.com/2020/04/03/GUSxaQ.png)
 
 ## Accessibility
 
