Error: chart not found in repository

Using this command
```sh
docker run -v $PWD:/kong -ti containersol/helm-convert:v0.5.3 convert --dep-up --name dev --namespace kong-dev --repo https://charts.konghq.com --destination /kong/kustomize kong/kong
```

throws an error
```
Error: chart "kong/kong/kong" not found in https://charts.konghq.com repository
```

Meanwhile `helm repo add https://charts.konghq.com` works fine on this container.

Was able to workaround this issue by specifying link to the chart itself:

```sh
docker run -v $PWD:/kong -ti containersol/helm-convert:v0.5.3 convert --dep-up --name dev --namespace kong-dev --destination /kong/kustomize https://github.com/Kong/charts/releases/download/kong-1.10.0/kong-1.10.0.tgz
```