update docs and readme

README.md

@@ -142,6 +142,7 @@ push chart              Push Helm chart to chart repository
 get env                 Get list of Helm releases in an environment (Kubernetes namespace)
 deploy env              Deploy a list of Helm charts to an environment (Kubernetes namespace) from chart repository
 delete env              Delete an environment (Kubernetes namespace) along with all Helm releases in it
+diff env                Show differences in Helm releases between environments (Kubernetes namespace)
 lock env                Lock an environment (Kubernetes namespace)
 unlock env              Unlock an environment (Kubernetes namespace)
 create resource         Create or update a resource via REST API

docs/commands/README.md

@@ -98,6 +98,21 @@ Flags:
 
 `helm-tls-store` - path to directory containing `<kube-context>.cert.pem` and `<kube-context>.key.pem` files
 
+### Diff env
+```
+Show differences in Helm releases between environments (Kubernetes namespace)
+
+Usage:
+  orca diff env [flags]
+
+Flags:
+  -h, --help                        help for env
+      --kube-context-left string    name of the left kubeconfig context to use. Overrides $ORCA_KUBE_CONTEXT_LEFT
+      --kube-context-right string   name of the right kubeconfig context to use. Overrides $ORCA_KUBE_CONTEXT_RIGHT
+      --name-left string            name of left environment to compare. Overrides $ORCA_NAME_LEFT
+      --name-right string           name of right environment to compare. Overrides $ORCA_NAME_RIGHT
+```
+
 ### Lock env
 ```
 Lock an environment (Kubernetes namespace)

pkg/orca/env.go

@@ -307,7 +307,7 @@ func NewDiffEnvCmd(out io.Writer) *cobra.Command {
 
 	cmd := &cobra.Command{
 		Use:   "env",
-		Short: "Show differences between environments (Kubernetes namespace)",
+		Short: "Show differences in Helm releases between environments (Kubernetes namespace)",
 		Long:  ``,
 		Args: func(cmd *cobra.Command, args []string) error {
 			if e.nameLeft == "" {