Updated the README file

Author: saravanangn

README.md

@@ -1,27 +1,15 @@
-# Ej2AngularDropdownlistAsyncPipe
+# ej2-angular-dropdownlist-async-pipe
+
+Angular DropDownList data binding with Observables using async pipe.
 
 This project was generated with [Angular CLI](https://github.com/angular/angular-cli) version 7.0.6.
 
 ## Development server
 
 Run `ng serve` for a dev server. Navigate to `http://localhost:4200/`. The app will automatically reload if you change any of the source files.
 
-## Code scaffolding
-
-Run `ng generate component component-name` to generate a new component. You can also use `ng generate directive|pipe|service|class|guard|interface|enum|module`.
-
-## Build
-
-Run `ng build` to build the project. The build artifacts will be stored in the `dist/` directory. Use the `--prod` flag for a production build.
-
-## Running unit tests
-
-Run `ng test` to execute the unit tests via [Karma](https://karma-runner.github.io).
-
-## Running end-to-end tests
-
-Run `ng e2e` to execute the end-to-end tests via [Protractor](http://www.protractortest.org/).
+## Documentation
 
-## Further help
+To bind with Observable/HttpClient data to DropDownList, please refer to the below documentation which explains this sample.
 
-To get more help on the Angular CLI use `ng help` or go check out the [Angular CLI README](https://github.com/angular/angular-cli/blob/master/README.md).
+[https://ej2.syncfusion.com/angular/documentation/grid/observables/](https://ej2.syncfusion.com/angular/documentation/grid/observables/)