Fixes links to previous years

Author: vishnuravi

2022/index.html

@@ -722,9 +722,9 @@ <h3 class="pulled left">Readings</h3>
 
                     <div class="class description">
                         <p>Looking for class content for previous years?
-                            <a href="2019/" class="ui right floated mini purple button">2019</a>
-                            <a href="2020/" class="ui right floated mini purple button">2020</a>
-                            <a href="2021/" class="ui right floated mini purple button">2021</a>
+                            <a href="/2019/" class="ui right floated mini purple button">2019</a>
+                            <a href="/2020/" class="ui right floated mini purple button">2020</a>
+                            <a href="/2021/" class="ui right floated mini purple button">2021</a>
                         </p>
                     </div>
                     <br>