added README.md to charts

charts/README.md

@@ -0,0 +1,14 @@
+## Usage
+
+[Helm](https://helm.sh) must be installed to use the charts. Please refer to
+Helm's [documentation](https://helm.sh/docs) to get started.
+
+Once Helm has been set up correctly, add the repo as follows:
+
+`helm repo add tethysportal-ciroh https://docs.ciroh.org/tethysportal-ciroh`
+
+If you had already added this repo earlier, run `helm repo update` to retrieve the latest versions of the packages. You can then run `helm search repo tethysportal-ciroh` to see the charts.
+
+To install the chart: `helm install cirohportal tethysportal-ciroh/ciroh`
+
+To uninstall the chart: `helm delete cirohportal tethysportal-ciroh/ciroh`