[Services] added jitsi

pages/sr/services.html

@@ -43,6 +43,12 @@
       <a href="/events">događaje</a>.
     </td>
   </tr>
+  <tr>
+    <td><a href="https://jitsi.dmz.rs/">Jitsi</a></td>
+    <td>
+      <a href="https://jitsi.org/">Jitsi.org</a> aplikacija za sastanke, groupne video pozive, online dogadjaje, alternativa za zoom.
+    </td>
+  </tr>
   <!--<tr>
     <td><a href="https://nextcloud.dmz.rs/">Nextcloud</a></td>
     <td>