adding sass to react code example

Example 1: install scss in react js

$ npm install node-sass --save
$ # or
$ yarn add node-sass

Example 2: scss react

npm install node-sass --save

Example 3: add sass to react

npm install node-sass --save-dev

Example 4: scss in react app

$ npm install node-sass --save$ # or$ yarn add node-sassCopy