content: import React, { Component } from 'react';
  import DataFlowHeader from './dataFlowHeader';
  import LinkageChart from './linkageChart';
  
  export default class DataFlowContainer extends Component {
      constructor(props) {
          super(props);
      }
  
      render() {
          return (
              <div>
                  <DataFlowHeader />
  
                  <div className="jumbotron">
                  <h3 className="display-4">Linkage Chart</h3>
                      <LinkageChart />
                  </div>
              </div>
          );
      }
  }