Add Iliad Italy Documentation (#7981)

* added iliad docs

* ✏️ Tweaks

* smaller logo

* Update 'ha_release'

source/_components/sensor.iliad_italy.markdown

@@ -0,0 +1,41 @@
+---
+layout: page
+title: "Iliad Italy"
+description: "Instructions on how to integrate Iliad Italy's data inside Home Assistant"
+date: 2018-12-29 00:00
+sidebar: true
+comments: false
+sharing: true
+footer: true
+ha_category: Communication
+logo: iliad.png
+ha_iot_class: "Cloud Polling"
+ha_release: 0.87
+---
+
+The `iliad_italy` sensor will give you the data from [Iliad Italy's](https://www.iliad.it/) website inside Home Assistant.
+
+## {% linkable_title Configuration %}
+
+To enable this sensor, add the following lines to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+sensor:
+  - platform: iliad_italy
+    username: USERNAME
+    password: PASSWORD
+```
+
+{% configuration %}
+username:
+  description: The username you use to check Iliad.it.
+  required: true
+  type: string
+password:
+  description: The password you use to check Iliad.it.
+  required: true
+  type: string
+{% endconfiguration %}
+
+The data is coming from the [iliad.it](https://www.iliad.it/) website.