add shortcode to training page

Author: Arhell

content/pl/training/_index.html

@@ -112,7 +112,6 @@ <h2>Partnerzy szkoleniowi Kubernetes</h2>
     </center>
   </div>
   <div class="main-section landscape-section">
-    <iframe src="https://landscape.cncf.io/category=kubernetes-training-partner&format=logo-mode&grouping=category&embed=yes" frameborder="0" id="landscape" scrolling="no"></iframe>
-    <script src="https://landscape.cncf.io/iframeResizer.js"></script>
+    {{< cncf-landscape helpers=false category="kubernetes-training-partner" >}}
   </div>
 </div>