Update README.md

Author: android10

README.md

@@ -20,18 +20,23 @@ Article, lessons learned and some more material coming up. Check the following k
 
 ## Sample app
 ![](https://user-images.githubusercontent.com/1360604/31345866-679a221a-ad17-11e7-8097-7800edb677fa.gif)
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 ## Clean Architecture
 ![https://fernandocejas.com/2018/05/07/architecting-android-reloaded/](https://github.com/android10/Sample-Data/blob/master/Android-CleanArchitecture-Kotlin/architecture/clean_architecture_reloaded_main.png)
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 ## Android 3 Layers Architecture
 ![https://fernandocejas.com/2018/05/07/architecting-android-reloaded/](https://github.com/android10/Sample-Data/blob/master/Android-CleanArchitecture-Kotlin/architecture/clean_architecture_reloaded_layers.png)
+<br>
 
 ## UI Layer: MVVM 
 ![https://fernandocejas.com/2018/05/07/architecting-android-reloaded/](https://github.com/android10/Sample-Data/blob/master/Android-CleanArchitecture-Kotlin/architecture/clean_architecture_reloaded_mvvm_app.png)
+<br>
 
 ## Data Layer: Repository 
 ![https://fernandocejas.com/2018/05/07/architecting-android-reloaded/](https://github.com/android10/Sample-Data/blob/master/Android-CleanArchitecture-Kotlin/architecture/clean_archictecture_reloaded_repository.png)
+<br>
 
 ## Local Development
 Here are some useful Gradle/adb commands for executing this example: