Added content for desktop applications in JavaScript (#2316)

* Added content on desktop applications, examples and types along with free video and blog content

* Update content/roadmaps/100-frontend/content/122-desktop-applications/readme.md

Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>

content/roadmaps/100-frontend/content/122-desktop-applications/readme.md

@@ -1 +1,8 @@
-# Desktop applications
+# Desktop Applications in JavaScript
+
+A while back, developing a desktop app using JavaScript was impossible. But now JavaScript developers can create desktop applications using their knowledge for web development. Here is the list of options to create desktop applications in JavaScript.
+
+* [Electron](https://www.electronjs.org/)
+* [NodeGUI](https://docs.nodegui.org/)
+* [NW.js](https://nwjs.io/)
+* [Meteor](https://www.meteor.com/)