updates for services

content/rke/v0.1.x/en/config-options/services/external-etcd/_index.md

@@ -1,6 +1,6 @@
 ---
 title: External etcd
-weight: 3000
+weight: 3027
 draft: true
 ---
 
@@ -28,7 +28,7 @@ services:
       -----END PRIVATE KEY-----
 ```
 
-## External etcd options
+## External etcd Options
 
 ### Path
 

content/rke/v0.1.x/en/config-options/services/extra-args-and-binds/_index.md

@@ -1,11 +1,18 @@
 ---
 title: Extra Args and Binds
-weight: 3000
+weight: 3026
 draft: true
 ---
 
+RKE supports the ability to configure your Kubernetes components by adding in extra service arguments to these components.
 
-RKE supports additional service arguments.
+## Extra Args
+
+For the `kube-controller`, you can update the `extra_args` to change the existing defaults.
+
+As of `v0.1.3`, using `extra_args` will add new arguments and **override** any existing defaults. For example, if you need to modify the default admission controllers list, you need to include the default list and edit it with your changes so all changes are included.
+
+Prior to `v0.1.3`, using `extra_args` would only add new arguments to the list and there was no ability to change the default list.
 
 ```yaml
 services:
@@ -14,11 +21,10 @@ services:
     extra_args:
       cluster-name: "mycluster"
 ```
-This will add/append `--cluster-name=mycluster` to the container list of arguments.
 
-As of `v0.1.3-rc2` using `extra_args` will add new arguments and **override** existing defaults. For example, if you need to modify the default admission controllers list, you need to change the default list and add apply it using `extra_args`.
+## Extra Binds
 
-RKE also supports additional volume binds:
+Additional volume binds can be made to services using the `extra_binds` arguments.
 
 ```yaml
 services: