Add Example Image (#17)

Add Example Image

Author: Naturalclar

README.md

@@ -6,7 +6,9 @@
 [![MIT License][license-badge]][license]
 [![Lean Core Badge][lean-core-badge]][lean-core-issue]
 
-Use `ProgressViewIOS` to render a UIProgressView on iOS.
+ProgressBar Component for iOS, based on UIProgressView.
+
+<img src="https://user-images.githubusercontent.com/6936373/73007429-e09dd500-3e4f-11ea-85dd-ce06be668975.png" width="320"/>
 
 ## Getting started
 
@@ -149,4 +151,4 @@ The library is released under the MIT license. For more information see [`LICENS
 [license-badge]: https://img.shields.io/npm/l/@react-native-community/progress-view.svg?style=flat-square
 [license]: https://opensource.org/licenses/MIT
 [lean-core-badge]: https://img.shields.io/badge/Lean%20Core-Extracted-brightgreen.svg?style=flat-square
-[lean-core-issue]: https://github.com/facebook/react-native/issues/23313
+[lean-core-issue]: https://github.com/facebook/react-native/issues/23313