divide javascript into subcategories

Author: tuvtran

README.md

@@ -35,25 +35,29 @@ To get started, simply fork this repo. Please refer to [CONTRIBUTING.md](CONTRIB
 * [Build an Android Flashlight App](https://www.youtube.com/watch?v=dhWL4DC7Krs)
 
 ## JavaScript:
+### Web Applications:
 * [Create Serverless React.js Apps](http://serverless-stack.com/)
 * [Create a Trello Clone](http://codeloveandboards.com/blog/2016/01/04/trello-tribute-with-phoenix-and-react-pt-1/)
 * [Create a Character Voting App with React, Node, MongoDB and SocketIO](http://sahatyalkabov.com/create-a-character-voting-app-using-react-nodejs-mongodb-and-socketio/)
 * [Build a Full Stack Movie Voting App with Test-First Development using Mocha, React, Redux and Immutable](https://teropa.info/blog/2015/09/10/full-stack-redux-tutorial.html)
 * [Build a URL Shortener with Node, MongoDB and Hapi.js](https://www.codetuts.tech/build-a-url-shortener-node-hapi-js/?utm_source=mybridge&utm_medium=blog&utm_campaign=read_more)
 * [Build an Instagram Clone](https://hackhands.com/building-instagram-clone-angularjs-satellizer-nodejs-mongodb/)
-* [How to Build a Web Framework in Less Than 20 Lines of Code](https://www.pubnub.com/blog/build-yourself-a-web-framework-in-less-than-20-lines-of-code/)
 * [Build a real-time Markdown Editor with NodeJS](https://scotch.io/tutorials/building-a-real-time-markdown-viewer)
 * Build a Serverless MERN Story App with Webtask.io
     * [Part 1](https://scotch.io/tutorials/build-a-serverless-mern-story-app-with-webtask-io-zero-to-deploy-1)
     * [Part 2](https://scotch.io/tutorials/build-a-serverless-mern-story-app-with-webtask-io-zero-to-deploy-2)
+### Game Development:
 * [Make 2D Breakout Game using Phaser](https://developer.mozilla.org/en-US/docs/Games/Tutorials/2D_breakout_game_Phaser)
 * Make Flappy Bird in HTML5 and JavaScript with Phaser
     * [Part 1](http://www.lessmilk.com/tutorial/flappy-bird-phaser-1)
     * [Part 2](http://www.lessmilk.com/tutorial/flappy-bird-phaser-2)
+### Desktop Application:
 * Build a Music Player with React & Electron
     * [Part 1](https://scotch.io/tutorials/build-a-music-player-with-react-electron-i-setup-basic-concepts)
     * [Part 2](https://scotch.io/tutorials/build-a-music-player-with-react-electron-ii-making-the-ui)
     * [Part 3](https://scotch.io/tutorials/build-a-music-player-with-react-electron-iii-bringing-it-all-together)
+### Miscellaneous:
+* [How to Build a Web Framework in Less Than 20 Lines of Code](https://www.pubnub.com/blog/build-yourself-a-web-framework-in-less-than-20-lines-of-code/)
 
 ## Python:
 ### Web Scraping: