Merge branch 'sub-sites' into 'main'

add repository link to footer

See merge request !17

themes/hugo-lithium/layouts/partials/footer.html

@@ -7,6 +7,9 @@
           <li>
             <a href="https://gohugo.io/" class="footer-links-kudos">Made with <img src="{{ "images/hugo-logo.png" | relURL }}" alt="Img link to Hugo website" width="22" height="22"></a>
           </li>
+          <li>
+            <a href="https://git.wur.nl/osc-w/osc-w-website" class="footer-links-kudos">Online repository <img src="{{ "images/gitlab-logo.png" | relURL }}" alt="Img link to GitLab project repository" width="88" height="22"></a>
+          </li>
         </ul>
       </footer>