Add back 'soumet' link

pages/index.js

@@ -1,8 +1,10 @@
+import {useRouter} from 'next/router'
 import PropTypes from 'prop-types'
 import Container from '@mui/material/Container'
 import Typography from '@mui/material/Typography'
 import Box from '@mui/material/Box'
 import Grid from '@mui/material/Grid'
+import Button from '@mui/material/Button'
 
 import HeadLayout from '../components/head-layout'
 import Footer from '../components/footer'
@@ -13,6 +15,8 @@ import KatKayLa from '../components/kat-kay-la'
 import Custom500 from './500'
 
 export default function Home({errorCode, errorMessage, stats}) {
+  const router = useRouter()
+
   if (errorCode) {
     console.log('⚠️ error', errorMessage)
     return <Custom500 statusCode={errorCode} />
@@ -33,6 +37,15 @@ export default function Home({errorCode, errorMessage, stats}) {
               Paroles, traductions et Fédiverse
             </Typography>
           </Container>
+          <Container sx={{marginTop: 2}}>
+            <Grid container justifyContent='center' spacing={2}>
+              <Grid item>
+                <Button variant='outlined' onClick={() => router.push('/soumet')}>
+                  <strong>Soumettre des paroles</strong>
+                </Button>
+              </Grid>
+            </Grid>
+          </Container>
         </Box>
         <Container sx={{flexGrow: 100}}>
           <Grid container spacing={2} sx={{marginBottom: 3}}>