Merge branch 'new-year' into 'main'

here we go, new year

See merge request !6

public/index.html

@@ -65,7 +65,7 @@
 
     <footer class="block bg-darkgreen">
         <div class="container">
-            <div>© 2021, Max-Planck-Institut für Bildungsforschung</div>
+            <div>© 2022, Max-Planck-Institut für Bildungsforschung</div>
             <div>
                 <a href="https://www.mpib-berlin.mpg.de/imprint">Imprint</a>
                 &middot;