updates helm init docs

docs/helm/helm_init.md

@@ -43,6 +43,7 @@ helm init
       --node-selectors string    labels to specify the node on which Tiller is installed (app=tiller,helm=rocks)
   -o, --output OutputFormat      skip installation and output Tiller's manifest in specified format (json or yaml)
       --override stringArray     override values for the Tiller Deployment manifest (can specify multiple or separate values with commas: key1=val1,key2=val2)
+      --probe-server-port int    overrides the default probe server port for Tiller
       --replicas int             amount of tiller instances to run on the cluster (default 1)
       --service-account string   name of service account
       --skip-refresh             do not refresh (download) the local repository cache
@@ -71,4 +72,4 @@ helm init
 ### SEE ALSO
 * [helm](helm.md)	 - The Helm package manager for Kubernetes.
 
-###### Auto generated by spf13/cobra on 8-Mar-2018
+###### Auto generated by spf13/cobra on 1-Jun-2018