Added gif examples

Author: Anton Poltoratskyi

Example/Demo/custom.gif

@@ -20,19 +20,23 @@ target 'MyApp' do
 end
 ```
 
-Available subspecs:
-- `Alert`
+If you don't need to connect all UI components you may use subspecs like:
 
 ```ruby
 target 'MyApp' do
   pod 'NativeUI/Alert', '~> 1.0'
 end
 ```
 
-## Usage
+Available subspecs:
+- `Utils`
+- `Alert`
 
 
+## Usage
 
+![Demo](https://github.com/AntonPoltoratskyi/NativeUI/blob/master/Example/Demo/default.gif)
+![Demo](https://github.com/AntonPoltoratskyi/NativeUI/blob/master/Example/Demo/custom.gif)
 
 ## Author