text: import React from 'react';
  import { Button, Container, Grid, Typography } from '@material-ui/core/';
  import {green, purple } from '@material-ui/core/colors';
  
  
  export default function StickyFooter() {
  
    return (
      <Container component="main" maxWidth="md">
        <Typography variant="h2" component="h1" gutterBottom>
          Simple Memory Game!
        </Typography>
        <Typography variant="h4" gutterBottom>
            Select a picture category
        </Typography>
        <Grid container spacing={3} direction="row" justify="space-evenly" alignItems="center">
          <Button variant="contained" color="primary">Animals</Button>
          <Button variant="contained" color="primary">Food</Button>
          <Button variant="contained" color="primary">Smash Characters</Button>
        </Grid>
      </Container>
    );
  }