Add new component renault documentation (#14383)

Co-authored-by: Milan Meulemans <milan.meulemans@live.be>
Co-authored-by: Franck Nijhof <git@frenck.dev>

source/_integrations/renault.markdown

@@ -0,0 +1,27 @@
+---
+title: Renault
+description: Instructions on how to integrate Renault car into Home Assistant.
+ha_category:
+  - Car
+  - Sensor
+ha_release: 2021.8
+ha_iot_class: Cloud Polling
+ha_config_flow: true
+ha_codeowners: '@epenet'
+ha_domain: renault
+---
+
+The Renault integration offers integration with the **MyRenault** cloud service and provides sensors such as charger state and temperature.
+
+This integration provides the following platforms:
+
+- Sensors - such as battery level, outside temperature, odometer, estimated range, and charging rate.
+
+## Prerequisites
+
+You need two API keys: one for Gigya and one for Kamereon and they shouldn't be confused with your API credentials. Instructions can be found at [https://github.com/jamesremuscat/pyze#obtaining-api-keys].
+
+
+{% include integrations/config_flow.md %}
+
+All vehicles linked to the account should then get added as devices, with sensors added as linked entity.