Update README.md

Author: jpelczar

README.md

@@ -17,7 +17,7 @@ Then select library folder from project. And start use. </p>
 
 See below to example: 
 
-image
+![](https://github.com/Sigmapoint/pl.sigmapoint.view.CustomButton/blob/develop/resources/screen.png)
 
 For creating facebook button you must only do this:
 ```xml