Add integration section to the Overview page

Author: serhiipylypchuk1991

docs/index.md

@@ -62,10 +62,29 @@ A gallery of live demos provides real-life examples of using DHTMLX widgets in w
 
 A [set of CSS templates](https://dhtmlx.com/docs/products/dhtmlxSuite/how-to-create-javascript-applications/) is specially designed for various use cases that can be implemented using DHTMLX widgets. You can borrow the CSS code and apply the styles you like in your web app.
 
-### Integration with Angular, React, and Vue.js
+### Integration with frameworks
+
 [comment]: # (ссылки ниже должны уводить на страницы доки)
-DHTMLX Suite is compatible with any client-side framework. There are code examples of how to use DHTMLX widgets with [Angular](integration/suite_and_angular.md), [React](integration/suite_and_react.md), and [Vue.js](integration/suite_and_vue.md) available on our GitHub pages.
 
+DHTMLX Suite is compatible with client-side frameworks. Refer to the following guides for more information on how to use DHTMLX Suite widgets with frameworks:
+- [Integration with React](integration/suite_and_react.md)
+- [Integration with Angular](integration/suite_and_angular.md)
+- [Integration with Vue](integration/suite_and_vue.md)
+- [Integration with Svelte](integration/suite_and_svelte.md)
+
+You can import DHTMLX Suite into your project using `yarn` or `npm` package manager.
+
+#### Installing trial DHTMLX Suite via npm or yarn
+
+:::info
+If you want to use trial version of Suite, download the [**trial Suite package**](https://dhtmlx.com/docs/products/dhtmlxSuite/download.shtml) and follow steps mentioned in the *README* file. Note that trial Suite is available 30 days only.
+:::
+
+#### Installing PRO DHTMLX Suite via npm or yarn
+
+:::info
+You can access the DHTMLX private **npm** directly in the [Client's Area](https://dhtmlx.com/clients/) by generating your login and password for **npm**. A detailed installation guide is also available there. Please note that access to the private **npm** is available only while your proprietary Suite license is active.
+:::
 ### Integration with any backend technologies
 
 Being a fully client-side library, DHTMLX Suite can be used with any backend. There is an example of integrating [DHTMLX Suite widgets with Node.js](https://github.com/DHTMLX/nodejs-suite-demo) in our GitHub repository.