update chart readme to remove grafana.image.version
@@ -185,7 +185,6 @@ The following table lists the configurable parameters for the Grafana Add-On.
| `grafana.enabled` | Flag to enable grafana instance to be installed | `true`
| `grafana.name` | Name of the grafana instance Service | `linkerd-grafana` |
| `grafana.image.name` | Docker image name for the grafana instance | `gcr.io/linkerd-io/grafana` |
-| `grafana.image.version` | Tag for the grafana container Docker image | latest version |
| `grafana.resources.cpu.limit` | Maximum amount of CPU units that the grafana container can use ||
| `grafana.resources.cpu.request` | Amount of CPU units that the gafana container requests ||
| `grafana.resources.memory.limit` | Maximum amount of memory that grafana container can use ||
