docs: update BACKERS

***NO_CI***

README.md

@@ -267,6 +267,23 @@ Support this project by becoming a sponsor. Your logo will show up in the Contri
         <a href="https://opencollective.com/wikijs/sponsor/29/website" target="_blank"><img src="https://opencollective.com/wikijs/sponsor/29/avatar.svg"></a>
       </td>
     </tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://opencollective.com/wikijs/sponsor/30/website" target="_blank"><img src="https://opencollective.com/wikijs/sponsor/30/avatar.svg"></a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://opencollective.com/wikijs/sponsor/31/website" target="_blank"><img src="https://opencollective.com/wikijs/sponsor/31/avatar.svg"></a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://opencollective.com/wikijs/sponsor/32/website" target="_blank"><img src="https://opencollective.com/wikijs/sponsor/32/avatar.svg"></a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://opencollective.com/wikijs/sponsor/33/website" target="_blank"><img src="https://opencollective.com/wikijs/sponsor/33/avatar.svg"></a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://opencollective.com/wikijs/sponsor/34/website" target="_blank"><img src="https://opencollective.com/wikijs/sponsor/34/avatar.svg"></a>
+      </td>
+    </tr>
   </tbody>
 </table>
 </div>