Amend links

1. Add link to spreadsheet template
2. Change route link

app/templates/index.html

@@ -10,13 +10,13 @@
     <div class="page--content">
     <h2 class="heading-md">Before you start</h2>
     <ol>
-      <li><strong>This tool will only work with data in specific formats.</strong> You must have two files – <code>mentees.csv</code> and <code>mentors.csv</code> – to start the matching process. Those files need to be formatted with specific column headings. You can <a href="#">download a template</a> from this website.</li>
+      <li><strong>This tool will only work with data in specific formats.</strong> You must have two files – <code>mentees.csv</code> and <code>mentors.csv</code> – to start the matching process. Those files need to be formatted with specific column headings. You can <a href="https://github.com/jonodrew/mentor-match-package/blob/main/templates/participant.csv">download a template</a> from this website.</li>
       <li><strong>Do not close your browser window during the matching process.</strong> Doing this may cause the matching process to fail and you to lose your matches.</li>
       <li><strong>The larger the number of matches you need, the longer this takes.</strong> Matching mentors to mentees takes around 10 minutes to match 500 participants.</li>
     </ol>
     <hr>
     <div class="button-group">
-      <a href="/match" class="button button--action">Start now</a>
+      <a href="/upload" class="button button--action">Start now</a>
     </div>
     </div>
   </div>