Add Roth Touchline documentation (#4336)

* Add Roth Touchline documentation

Add Roth Touchline documentation

Pull request in home-assistant (if applicable): home-assistant/home-assistant#10547

* Minor changes

source/_components/climate.touchline.markdown

@@ -0,0 +1,32 @@
+---
+layout: page
+title: "Roth Touchline"
+description: "Instructions how to integrate Roth Touchline within Home Assistant."
+date: 2018-01-03 12:35
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: roth.png
+ha_category: Climate
+ha_release: 0.61
+ha_iot_class: "Local Polling"
+---
+
+The `touchline` climate platform let you control [ROTH Touchline](http://www.roth-nordic.dk/dk/roth-touchline-tradloes-gulvvarmeregulering-1475.htm) floor heating thermostats from Roth. 
+
+
+To set it up, add the following information to your `configuration.yaml` file:
+
+```yaml
+climate:
+  - platform: touchline
+    host: YOUR_IPADDRESS
+```
+
+{% configuration %}
+host:
+  description: The IP address of your controller, e.g., http://192.168.1.1.
+  required: false
+  type: string
+{% endconfiguration %}