Update README.md

Author: chornthorn

README.md

@@ -14,3 +14,4 @@ A few resources to get you started if this is your first Flutter project:
 For help getting started with Flutter, view our
 [online documentation](https://flutter.dev/docs), which offers tutorials,
 samples, guidance on mobile development, and a full API reference.
+![Screen Shot 2563-07-22 at 23 42 59](https://user-images.githubusercontent.com/36778896/88204820-0e849a80-cc76-11ea-9000-0347f769a869.png)