add docs for upcoming BleBox integration (#13148)

Co-Authored-By: Franck Nijhof <frenck@frenck.nl>

source/_integrations/blebox.markdown

@@ -0,0 +1,41 @@
+---
+title: BleBox
+description: Instructions on how to integrate BleBox devices with Home Assistant.
+ha_category:
+  - Cover
+ha_release: 0.110
+ha_iot_class: Local Polling
+ha_config_flow: true
+ha_codeowners:
+  - '@gadgetmobile'
+ha_domain: blebox
+---
+
+[BleBox](https://blebox.eu/?lang=en) produces small, low-power, surprisingly affordable, feature-rich WiFi devices for serverless home automation.
+
+## Configuration
+
+For the best experience, make sure your BleBox devices have the most recent available firmware installed.
+
+This integration can be configured using the integrations in the
+Home Assistant frontend.
+
+Menu: **Configuration** -> **Integrations**.
+
+Click on the `+` sign to add an integration and click on **BleBox**.
+After completing the configuration flow, the BleBox
+integration will be available.
+
+Additionally, if you are configuring a gateBox, it may be useful to set the second button as "stop" in your device's settings (via website or phone app).
+
+## Covers
+
+This integration adds the BleBox device as a cover in Home Assistant.
+
+Currently, this includes support for the following product classes:
+
+- BleBox shutterBox
+- BleBox gateController
+- BleBox gateBox
+
+For now, only a minimum set of features are supported (e.g., no tilt support for shutterBox).