Fix helm icon URL (#2060)

charts/kafka-ui/Chart.yaml

@@ -4,4 +4,4 @@ description: A Helm chart for kafka-UI
 type: application
 version: 0.0.3
 appVersion: latest
-icon: https://github.com/provectus/kafka-ui/raw/master/images/kafka-ui-logo.png
+icon: https://github.com/provectus/kafka-ui/raw/master/documentation/images/kafka-ui-logo.png