import React, { Component } from 'react';
import { Link } from 'react-router-dom'

export default class Home extends Component {
  render() {
    return (
      <Link to='/app'>Join</Link>
    );
  }
}
@@ -74,16 +74,41 @@
 ter-dom'
+%0Aimport App from './App';
 %0A%0Aexport
@@ -153,64 +153,420 @@
 %7B%0A  
-render() %7B%0A    return (%0A      %3CLink to='/app'%3EJoin%3C/Link
+constructor(props) %7B%0A    super(props);%0A%0A    this.state = %7B%0A      showSession: false%0A    %7D;%0A%0A    this.displaySession = this.displaySession.bind(this);%0A  %7D%0A%0A  displaySession() %7B%0A    this.setState(%7B%0A      showSession: true%0A    %7D);%0A  %7D%0A%0A  render() %7B%0A    return (%0A      %3Cdiv%3E%0A        %3Cbutton onClick=%7Bthis.displaySession%7D%3EJoin%3C/button%3E%0A        %7B%0A          this.state.showSession ? %3CApp /%3E : null%0A        %7D%0A      %3C/div
 %3E%0A  

update home button