text: import React from 'react';
  import { AppBar, Typography, Toolbar } from '@material-ui/core';
  
  export default ({ appName }) => {
  
      return (
          <AppBar position="static">
              <Toolbar>
                  <Typography variant="h6" >
                      {appName}
                  </Typography>
              </Toolbar>
          </AppBar>
      )
  }