Add documentation on Miele vacuum platform (#38770)

source/_integrations/miele.markdown

@@ -10,6 +10,7 @@ ha_category:
   - Light
   - Sensor
   - Switch
+  - Vacuum
 ha_iot_class: Cloud Push
 ha_release: '2025.5'
 ha_domain: miele
@@ -25,6 +26,7 @@ ha_platforms:
   - light
   - sensor
   - switch
+  - vacuum
 ha_integration_type: integration
 ha_zeroconf: true
 ha_quality_scale: bronze
@@ -170,6 +172,13 @@ Climate entities are used to control target temperatures in refrigerators, freez
 - **Superfreezing**: The switch controls Superfreezing mode for freezers.
 {% enddetails %}
 
+### Vacuum
+
+{% details "List of vacuum entities" %}
+
+- **Robot vacuum cleaner**: Miele robot vacuum cleaners can be monitored and controlled to a limited extent. The device can be started, stopped, and paused. The fan speed can also be set.
+{% enddetails %}
+
 ## Automation examples
 
 Get started with these automation examples