[Services] added invidious

pages/en/services.html

@@ -60,6 +60,12 @@
     </td>
   </tr>-->
   <tr>
+  <tr>
+    <td><a href="https://invidious.dmz.rs/">Invidious</a></td>
+    <td>
+      <a href="https://invidious.io/">Invidious</a>, alternative font-end to YouTube.
+    </td>
+  </tr>
   <tr>
     <td><a href="https://search.dmz.rs/">Search</a></td>
     <td>