chore: update readme images (#2143)

README.md

-[![Build Status](https://travis-ci.org/akveo/ngx-admin.svg?branch=master)](https://travis-ci.org/akveo/ngx-admin)
-[![Join the chat at https://gitter.im/ng2-admin/Lobby](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/ng2-admin/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
-[![Dependency Status](https://david-dm.org/akveo/ngx-admin/status.svg)](https://david-dm.org/akveo/ng2-admin)
+# ngx-admin [<img src="https://i.imgur.com/oMcxwZ0.png" alt="Eva Design System" height="20px" />](https://eva.design) [![Build Status](https://travis-ci.org/akveo/ngx-admin.svg?branch=master)](https://travis-ci.org/akveo/ngx-admin) [![Dependency Status](https://david-dm.org/akveo/ngx-admin/status.svg)](https://david-dm.org/akveo/ng2-admin)
 
 [Who uses ngx-admin?](https://github.com/akveo/ngx-admin/issues/1645)| [Documentation](https://akveo.github.io/ngx-admin/?utm_source=github&utm_medium=ngx_admin_readme&utm_campaign=themes) | [Installation Guidelines](https://akveo.github.io/ngx-admin/docs/getting-started/what-is-ngxadmin?utm_source=github&utm_medium=ngx_admin_readme&utm_campaign=themes)
 
-# Admin template based on Angular 7+, Bootstrap 4 and <a href="https://github.com/akveo/nebular">Nebular</a>
-<a target="_blank" href="http://akveo.com/ngx-admin/pages/dashboard?theme=corporate&utm_source=github&utm_medium=ngx_admin_readme&utm_campaign=main_pic"><img src="https://i.imgur.com/OIL7rt8.png"/></a>
+# Admin template based on Angular 8+ and <a href="https://github.com/akveo/nebular">Nebular</a>
+<a target="_blank" href="http://akveo.com/ngx-admin/pages/dashboard?theme=corporate&utm_source=github&utm_medium=ngx_admin_readme&utm_campaign=main_pic"><img src="https://i.imgur.com/IhoaWxa.png"/></a>
 
 ### Backend Integration Bundles
 Easy way to integrate ngx-admin with .NET, Node.js, Java or PHP. [Checkout our Store](https://store.akveo.com/?utm_source=github&utm_medium=ngx_admin_readme) for ready to use Backend Bundles.
@@ -13,15 +11,15 @@ Easy way to integrate ngx-admin with .NET, Node.js, Java or PHP. [Checkout our S
 
 ### With 3 stunning visual themes
 
-#### Cosmic
-<a target="_blank" href="http://akveo.com/ngx-admin/pages/dashboard?theme=cosmic&utm_source=github&utm_medium=ngx_admin_readme&utm_campaign=themes"><img src="https://i.imgur.com/tvAJJhW.png"/></a>
+#### Dark
 
-#### Corporate
-<a target="_blank" href="http://akveo.com/ngx-admin/pages/dashboard?theme=corporate&utm_source=github&utm_medium=ngx_admin_readme&utm_campaign=themes"><img src="https://i.imgur.com/wbEtUX4.jpg"/></a>
+<a target="_blank" href="http://akveo.com/ngx-admin/pages/dashboard?theme=default&utm_source=github&utm_medium=ngx_admin_readme&utm_campaign=themes"><img src="https://i.imgur.com/iam0CaJ.png"/></a>
 
-#### Light
+#### Cosmic
+<a target="_blank" href="http://akveo.com/ngx-admin/pages/dashboard?theme=cosmic&utm_source=github&utm_medium=ngx_admin_readme&utm_campaign=themes"><img src="https://i.imgur.com/8KwE112.png"/></a>
 
-<a target="_blank" href="http://akveo.com/ngx-admin/pages/dashboard?theme=default&utm_source=github&utm_medium=ngx_admin_readme&utm_campaign=themes"><img src="https://i.imgur.com/cb9U34M.jpg"/></a>
+#### Corporate
+<a target="_blank" href="http://akveo.com/ngx-admin/pages/dashboard?theme=corporate&utm_source=github&utm_medium=ngx_admin_readme&utm_campaign=themes"><img src="https://i.imgur.com/DYtQ2Qc.png"/></a>
 
 ### What's included:
 
@@ -35,10 +33,6 @@ Easy way to integrate ngx-admin with .NET, Node.js, Java or PHP. [Checkout our S
 - 40+ Angular Components
 - 60+ Usage Examples
 
-### Hot Themes Reload
-
-<a target="_blank" href="http://akveo.com/ngx-admin/pages/dashboard?utm_source=github&utm_medium=ngx_admin_readme&utm_campaign=demo"><img src="https://i.imgur.com/XoJtfvK.gif"/></a>
-
 ### Demo
 
 <a target="_blank" href="http://akveo.com/ngx-admin/">Live Demo</a>