Update index.html and o-nas.html to modify club ratings and add a new sponsor

o-nas.html

@@ -404,6 +404,13 @@
 									</a>
                                 </div>
                               </div>
+                              <div class="col-xl-3 col-lg-3 col-md-6 col-sm-6 col-ms-6 col-xs-12 partners-wrap  center-flex">
+                                <div class="partners-item item center-flex">
+									<a href="https://www.avena.cz/" target="_blank">
+										<img decoding="async" src="img/sponzor10.png" class="image">
+									</a>
+                                </div>
+                              </div>
                             </div>
                           </div>
                         </div>