Wunderlist Docs (#7448)

* Wunderlist Docs

* Review

* Update wunderlist.markdown

source/_components/wunderlist.markdown

@@ -0,0 +1,65 @@
+---
+layout: page
+title: "Wunderlist"
+description: "Instructions on how to use Wunderlist with Home Assistant."
+date: 2018-10-09 10:10
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: wunderlist.png
+ha_category: Calendar
+ha_release: 0.84
+---
+
+The `wunderlist` component allows you to create tasks in [Wunderlist](https://www.wunderlist.com) from Home Assistant. You can use this if you want Home Assistant to send you a task that 
+you should not forget, e.g., Congratulate Dani.
+
+## {% linkable_title Setup %}
+
+Wunderlist API uses OAuth2, so you need to obtain a `client_id` and an `access_token`. 
+There are two ways:
+ 
+ 
+1. Go to the [Wunderlist IOT app page](https://wunderlist-iot.herokuapp.com), login with your Wunderlist account and accept the application permissions.
+   It will print for you the `client_id` and the `access_token`.
+2. Or you can create your own application and `access_token` following the instructions at the [Wunderlist developer page](https://developer.wunderlist.com/).
+
+Store the parameters in your Home Assistant configuration:
+
+```yaml
+# Example configuration.yaml entry
+
+wunderlist:
+  client_id: YOUR_CLIENT_ID
+  access_token: YOUR_ACCESS_TOKEN
+
+```
+
+
+{% configuration %}
+client_id:
+  description: The ID of your Wunderlist application (OAuth2).
+  required: true
+  type: string
+  
+access_token:
+  description: A token for your Wunderlist personal account (For the ``client_id`` application).
+  required: true
+  type: string
+{% endconfiguration %}
+
+## {% linkable_title Creating tasks with service `create_task`%}
+
+This component offers a new service domain `wunderlist` with the service `create_task`. 
+You can call this service with the argument  `list_name` the argument `name` and the optional parameter `starred` to create a new task. 
+
+
+|Service data attribute	| Optional | Description | Example |
+|-----------------------|----------|-------------|---------|
+| list_name | no  | Name of the list | "Shopping list"
+| name      | no  | Name of the new task | "Spanish Jam" |
+| starred   | yes | Create the task starred or not | false |
+
+## {% linkable_title Disclaimer %}
+This product uses the Wunderlist API but is not endorsed or certified by Wunderlist.