Added "Waze travel time" sensor documentation (#4498)

* Added Waze Travel Time documentation

* Added Waze Travel Time documentation

* Added Waze Travel Time documentation
Fixed commit remarks from frenck

* * Added Waze Travel Time documentation
Fixed commit remarks from frenck

* ✏️ Tweaks

* Multiple fixes

* Update

source/_components/sensor.waze_travel_time.markdown

@@ -0,0 +1,51 @@
+---
+layout: page
+title: "Waze Travel Time"
+description: "Instructions on how to add Waze travel time to Home Assistant."
+date: 2018-01-23 00:00
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: waze.png
+ha_category: Transport
+ha_iot_class: "Cloud Polling"
+ha_release: 0.67
+---
+
+The `waze_travel_time` sensor provides travel time from the [Waze](https://www.waze.com/).
+
+Unit system is set to metric system.
+
+## {% linkable_title Configuration %}
+
+To use this sensor in your installation, add the following `abode` section to your `configuration.yaml` file:
+
+```yaml
+# Example entry for configuration.yaml
+sensor:
+  - platform: waze_travel_time
+    origin: Montréal, QC
+    destination: Québec, QC
+    region: 'US'
+```
+
+{% configuration %}
+origin:
+  description: Enter the starting address or the GPS coordinates of the location (GPS coordinates has to be separated by a comma).
+  required: true
+  type: string
+destination:
+  description: Enter the destination address or the GPS coordinates of the location (GPS coordinates has to be separated by a comma).
+  required: true
+  type: string
+region:
+  description: Choose one of the available regions from 'EU', 'US', 'NA' (equivalent to 'US') or 'IL'.
+  required: true
+  type: string
+name:
+  description: A name to display on the sensor.
+  required: false
+  default: "Waze Travel Time"
+  type: string
+{% endconfiguration %}