Add rest notify docs

source/_components/notify.rest.markdown

@@ -0,0 +1,40 @@
+---
+layout: page
+title: "REST"
+description: "Instructions how to add RESTful notifications to Home Assistant."
+date: 2016-02-12 07:00
+sidebar: true
+comments: false
+sharing: true
+footer: true
+ha_category: Notifications
+---
+
+
+The `rest` notification platform allows you to deliver [RESTful](https://en.wikipedia.org/wiki/Representational_state_transfer) notifications from Home Assistant to another party.
+
+To enable the REST notification in your installation, add the following to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+notify:
+  name: NOTIFIER_NAME
+  platform: rest
+  resource: http://IP_ADDRESS/ENDPOINT
+  method: GET
+  message_param_name: MESSAGE_PARAMETER_NAME
+  title_param_name: TITLE_PARAMETER_NAME
+  target_param_name: TARGET_PARAMETER_NAME
+```
+
+Configuration variables:
+
+- **name** (*Optional*): Setting the optional parameter `name` allows multiple notifiers to be created. The default value is `notify`. The notifier will bind to the service `notify.NOTIFIER_NAME`.
+- **resource** (*Required*): The resource or endpoint that will recieve the value.
+- **method** (*Optional*): The method of the request. Default is GET.
+- **message_param_name** (*Optional*): Parameter name for the message. Defaults to `message`.
+- **title_param_name** (*Optional*): Parameter name for the title. Defaults to none.
+- **target_param_name** (*Optional*): Parameter name for the target. Defaults to none.
+
+To use notifications, please see the [getting started with automation page]({{site_root}}/components/automation/).
+