Update README.md

README.md

@@ -60,6 +60,9 @@ curl https://raw.githubusercontent.com/kubero-dev/ladder/main/docker-compose.yam
 docker-compose up -d
 ```
 
+### Helm
+See [README.md](/helm-chart/README.md) in helm-chart sub-directory for more information.
+
 ## Usage
 
 ### Browser
@@ -136,4 +139,4 @@ See in [ruleset.yaml](ruleset.yaml) for an example.
     - position: .left-content article # Position where to inject the code into DOM
       prepend: | 
         <h2>Suptitle</h2>
-```
+```