Added documentation for ROVA sensor (#7780)

* Added documentation for ROVA sensor

* Update source/_components/sensor.rova.markdown

Fixed example configuration

Co-Authored-By: GidoHakvoort <gido@hakvoort.it>

* Update sensor.rova.markdown

* Update sensor.rova.markdown

* Update sensor.rova.markdown

* ✏️ Tweak

* Update sensor.rova.markdown

Update ha_release

source/_components/sensor.rova.markdown

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+---
+layout: page
+title: "ROVA Sensor"
+description: "Instructions on how to integrate ROVA sensor within Home Assistant."
+date: 2018-12-08 18:00
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: rova.jpg
+ha_category: Sensor
+ha_release: 0.87
+ha_iot_class: "Cloud Polling"
+---
+
+[ROVA](https://rova.nl) is a waste collection company that operates in the center and east of the Netherlands. The `rova` platform uses an unofficial [ROVA](https://rova.nl) API to allow you to get your waste collection schedule and integrate this in your Home Assistant installation.
+
+## {% linkable_title Configuration %}
+
+To use the ROVA sensor in your installation, add the following to your configuration.yaml file:
+
+```yaml
+# Example configuration.yaml entry
+sensor:
+  - platform: rova
+    zip_code: ZIP_CODE
+    house_number: HOUSE_NUMBER
+```
+
+{% configuration %}
+zip_code:
+  description: Your zip code.
+  required: true
+  type: string
+house_number:
+  description: Your house number.
+  required: true
+  type: string
+name:
+  description: Let you overwrite the name of the device in the frontend.
+  required: false
+  default: Rova
+  type: string
+monitored_conditions:
+  description: ROVA information to be monitored. The following collection dates can be monitored.
+  required: false
+  type: list
+  keys:
+    bio:
+      description: Upcoming collection date of your biodegradable waste
+    paper:
+      description: Upcoming collection date of your paper waste
+    plastic:
+      description: upcoming collection date of your plastic waste
+    residual:
+      description: Upcoming collection date of your general waste
+{% endconfiguration %}
+
+If no **monitored_conditions** are specified, only **bio** will be enabled.
+
+### {% linkable_title Full configuration sample %}
+
+A full configuration entry would look like the sample below.
+
+```yaml
+# Example configuration.yaml entry
+sensor:
+  - platform: rova
+    zip_code: ZIP_CODE
+    house_number: HOUSE_NUMBER
+    name: Rova
+    monitored_conditions:
+      - bio
+      - paper
+      - plastic
+      - residual
+```
+
+To have your Home Assistant installation remind you of upcoming waste collections, combine the `rova` platform with some [Automations](/docs/automation/) and a [notification platform](/components/notify/).
+
+{% raw %}
+```yaml
+# Example configuration.yaml entry for Rova waste collection reminder
+automation:
+  - id: rova-garbage-bio-reminder
+    alias: 'Send Rova Bio waste collection reminder'
+    hide_entity: true
+    trigger:
+      - platform: time
+        at: '19:00:00'
+    condition:
+      - condition: template
+        value_template: "{% if (as_timestamp(states.sensor.rova_garbage_gft.state) - as_timestamp(now())) < 43200 %}true{% endif %}"
+    action:
+      - service: NOTIFICATION_SERVICE
+        data:
+          message: 'Reminder: put out biowaste bin'
+```
+{% endraw %}