slick slider
1. npm install react-slick
2. add cdn link in html for css and font
3.import Slider from 'react-slick';
https://jsfiddle.net/kirana/20bumb4g/
https://tw.saowen.com/a/348182b6642655a715db2316b789b62034640e97d7215b283afabb9e4943fdf8
https://stackoverflow.com//questions/37500321/react-slick-slider-stays-on-same-page-if-slides-items-are-changed
https://github.com/souporserious/react-view-pager
https://github.com/andyyou/react-coverflow
