diff --git a/docs/pl/index.html b/docs/pl/index.html
index e29ec772..6a4a4be0 100644
--- a/docs/pl/index.html
+++ b/docs/pl/index.html
@@ -53,6 +53,7 @@
 <a href="../da/index.html"><img src="https://i.imgur.com/BOi815w.png" alt="Danish.png, 2,2kB" title="Danish" height="32" width="32"></a>
 <a href="../fi/index.html"><img src="https://i.imgur.com/dDFaJqs.png" alt="Finnish.png, 2,2kB" title="Finnish" height="32" width="32"></a>
 <a href="../ru/index.html"><img src="https://i.imgur.com/3R5jVrX.png" alt="Russian.png, 2,2kB" title="Russian" height="32" width="32"></a>
+<a href="https://github.com/martinius96/hladinomer-studna-scripty/tree/master/examples/Hladinomer" class="btn btn-info" role="button">Firmware</a>
 <!---<a href="th/zapojenie.html"><img src="https://i.imgur.com/9jqINRw.png" alt="Thai.png, 2,2kB" title="Thai" height="32" width="32"></a>-->
 </ul>
   </div>