Update README.md

Author: AndroidDeveloperLB

README.md

@@ -17,7 +17,13 @@ Supported preferences are:
 Sample 
 ==================================
 Just check the code, or see how it works on my app, here:
-https://play.google.com/store/apps/details?id=com.lb.app_manager
+
+<a href="https://play.google.com/store/apps/details?id=com.lb.app_manager">
+  <img alt="sample app"
+       src="en_app_rgb_wo_60.png" />
+</a>
+
+
 
 
 Screenshots