[DOCS] Add trademark note

docs/devices/devices_template.html

@@ -213,6 +213,7 @@ <h4>
             and OpenMQTTGateway. BLE trackers from Tile, Nut, TagIt and iTag will also be recognised and published as device trackers. The table also indicates whether each device has been confirmed to work with our mobile
             application.</p>
         {table_content_to_replace}
+        <div class="custom-block warning"><p class="custom-block-title">Note</p> <p>All product and company names are trademarks or registered trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.</p></div>
     </div>
     <script type="text/javascript" charset="utf8" src="https://code.jquery.com/jquery-3.5.1.js"></script>
     <script type="text/javascript" charset="utf8"