Merge pull request #236 from syncfusion-content/SEO-3267-Angular

SEO-3267 - Angular Controls Permanent Redirect

Author: Aishwarya-Ganesan

angular/GettingStarted/overview.md

@@ -18,7 +18,7 @@ We have implemented seed application in GitHub repository [Syncfusion Angular se
 ## Prerequisite
 
 * [Node JS](https://nodejs.org/en/) (v6.x.x or higher).  
-* [NPM](https://docs.npmjs.com/getting-started/installing-node#install-npm--manage-npm-versions) (4.x.x or higher).
+* [NPM](https://docs.npmjs.com/downloading-and-installing-node-js-and-npm) (4.x.x or higher).
 
 To get deep understanding about Syncfusion Angular seed application with SystemJS and Webpack, refer below links.
 

angular/Overview.md

@@ -11,7 +11,7 @@ documentation: ug
 
 # Essential JS 1 Angular Overview 
 
-Essential JavaScript provides support for [Angular](https://angular.io/docs/ts/latest/quickstart.html) Framework through wrappers. Each Syncfusion widgets are created as Angular components with built in support for data binding to make complex property definition easier.
+Essential JavaScript provides support for [Angular](https://angular.io/start) Framework through wrappers. Each Syncfusion widgets are created as Angular components with built in support for data binding to make complex property definition easier.
 
 The Syncfusion Angular components are named with prefix `ej` to avoid conflicting with other library component and offers the following features.