Updating contributors

Author: JacobReynolds

misc/contributors.html

@@ -16,4 +16,7 @@ <h3>Special thanks to our contributors:</h3>
   <li><h4>Khai Tran (@k_tr4n)</h4></li>
   <li><h4>Rafael Seferyan</h4></li>
   <li><h4>Scott Sutherland (@_nullbind)</h4></li>
+  <li><h4>Sachin Wagh (@tigertigerboy07)</h4></li>
+  <li><h4>Anurag Kumar (@anukaal)</h4></li>
+  <li><h4>Matthias Altmann (@secf00tprint)</h4></li>
 </ul>