Merge pull request practical-tutorials#79 from sayands/master

Added React,Hapi and R tutorials

Author: tuvtran

README.md

@@ -142,6 +142,8 @@ To get started, simply fork this repo. Please refer to [CONTRIBUTING.md](CONTRIB
 * [Build A ToDo App With React Native](https://blog.hasura.io/tutorial-fullstack-react-native-with-graphql-and-authentication-18183d13373a)
 * [Make a Chat Application](https://medium.freecodecamp.org/how-to-build-a-chat-application-using-react-redux-redux-saga-and-web-sockets-47423e4bc21a)
 * [Create a News App with React Native](https://medium.freecodecamp.org/create-a-news-app-using-react-native-ced249263627)
+* [Learn Webpack For React](https://medium.freecodecamp.org/learn-webpack-for-react-a36d4cac5060)
+* [Testing React App With Pupepeteer and Jest](https://blog.bitsrc.io/testing-your-react-app-with-puppeteer-and-jest-c72b3dfcde59)
 
 #### Angular:
 
@@ -179,6 +181,8 @@ To get started, simply fork this repo. Please refer to [CONTRIBUTING.md](CONTRIB
   * [Part 1](https://scotch.io/tutorials/build-a-support-ticket-application-with-adonisjs)
   * [Part 2](https://scotch.io/tutorials/build-a-support-ticket-application-with-adonisjs-part-2)
 * [Build A Native Desktop App with JS](https://medium.freecodecamp.org/build-native-desktop-apps-with-javascript-a49ede90d8e9)
+* Build a Powerful API with NodeJs,GraphQL and Hapi
+  * [Part I](https://medium.com/@wesharehoodies/how-to-setup-a-powerful-api-with-nodejs-graphql-mongodb-hapi-and-swagger-e251ac189649)
 
 #### D3.js
 
@@ -369,6 +373,7 @@ To get started, simply fork this repo. Please refer to [CONTRIBUTING.md](CONTRIB
 
 * [Build Web Apps with Shiny](http://shiny.rstudio.com/tutorial/)
 * [Build A Cryptocurrency Bot](https://towardsdatascience.com/build-a-cryptocurrency-trading-bot-with-r-1445c429e1b1)
+* [Associate Rule Mining in R](https://towardsdatascience.com/association-rule-mining-in-r-ddf2d044ae50)
 
 ## Rust: