title: How to show a getting started popup in react js?
body: <p>i just wanted to know how to show dialog box or popup using react js
  i had made a page and now what i want is to show the instructions of getting started like we see in several sites
  On clicking next button it will show next dialog box and on close it will close the popup
  Also the dialog box or popup i want in the center of the screen</p>