updated the doc file

Author: Rohit Mishra

js-sdk-reference/index.html

@@ -33,7 +33,7 @@ <h1 class="page-title">Contentstack - Javascript SDK</h1>
             <h2><a id="JavaScript_SDK_for_Contentstack_1"></a>JavaScript SDK for Contentstack</h2>
             <p>Contentstack is a headless CMS with an API-first approach. It is a CMS that developers can use to build powerful cross-platform applications in their favorite languages. Build your application frontend, and Contentstack will take care of the rest. <a href="https://www.contentstack.com/">Read More</a>.</p>
             <p>Contentstack provides JavaScript SDK to build application on top of JavaScript. Given below is the detailed guide and helpful resources to get started with our JavaScript SDK.</p>
-            <p>The JavaScript SDK can also be used to create Node.js, React Native and NativeScript applications.</p>
+            <p>The JavaScript SDK can also be used to create Node.js and React Native applications.</p>
             <h3><a id="Prerequisite_9"></a>Prerequisite</h3>
             <p>You need Node.js version 4.4.7 or later installed to use the Contentstack JavaScript SDK.</p>
             <h3><a id="Setup_and_Installation_13"></a>Setup and Installation</h3>
@@ -64,16 +64,6 @@ <h4><a id="For_React_Native_39"></a>For React Native</h4>
             <p>To initialize the SDK, you will need to specify the API Key, Access Token, and Environment Name of your stack.</p>
             <pre class="prettyprint"><code>const Stack = Contentstack.Stack("api_key", "access_token", "environment_name");
             </code></pre>
-            <h4><a id="For_React_Native_39"></a>For NativeScript</h4>
-            <p>NativeScript uses the Javascript SDK to create apps. To use the JavaScript SDK, download it from <a href="https://www.contentstack.com/docs/platforms/javascript-browser/javascript_sdk_latest">here</a>, OR install ist via npm:</p>
-            <pre class="prettyprint"><code>npm -i contentstack
-            </code></pre>
-            <p>To import the SDK in your project, use the following command:</p>
-            <pre class="prettyprint" class="prettyprint"><code>import contentstack from `contentstack/native-script`
-            </code></pre>
-            <p>To initialize the SDK, you will need to specify the API Key, Access Token, and Environment Name of your stack.</p>
-            <pre class="prettyprint"><code>const Stack = Contentstack.Stack("api_key", "access_token", "environment_name");
-            </code></pre>
             <h3><a id="Key_Concepts_for_using_Contentstack_54"></a>Key Concepts for using Contentstack</h3>
             <h4><a id="Stack_56"></a>Stack</h4>
             <p>A stack is like a container that holds the content of your app. Learn more about <a href="https://www.contentstack.com/docs/guide/stack">Stacks</a>.</p>