updated readme

Author: sagiv.bengiat

README.md

@@ -70,16 +70,26 @@ class App extends Component {
 
 ## Development
 
-```console 
+```console
 git clone https://github.com/sag1v/react-elastic-carousel.git
 cd react-elastic-carousel
 yarn
+```
+
+### To run the docs site run
+
+```console
 yarn start
 ```
 
+### to run a demo Application run
+
+```console
+yarn demo
+```
+
 The application is running at http://localhost:8888
 
 ## License
 
 MIT © [sag1v](https://github.com/sag1v)
-