Update README.md

Author: Noah Hanjun Lee

README.md

@@ -11,7 +11,7 @@ Read and follow the Helm installation guide.
 In order to be able to use the charts in this repository, add the name and URL to your Helm client:
 
 ```console
-$ helm repo add gitployio https://gitploy.io/helm-charts/
+$ helm repo add gitployio https://gitploy.io/helm-chart/
 $ helm repo update
 ```