Add configuration flow to CPU Speed (#20910)

source/_integrations/cpuspeed.markdown

@@ -9,11 +9,12 @@ ha_iot_class: Local Push
 ha_codeowners:
   - '@fabaff'
 ha_domain: cpuspeed
+ha_config_flow: true
 ha_platforms:
   - sensor
 ---
 
-The `cpuspeed` sensor platform to allow you to monitor the current CPU speed.
+The CPU Speed integration allows you to monitor the current CPU speed.
 
 <div class='note warning'>
 
@@ -21,20 +22,4 @@ The `cpuspeed` sensor platform to allow you to monitor the current CPU speed.
 
 </div>
 
-## Configuration
-
-To add this platform to your installation, add the following to your `configuration.yaml` file:
-
-```yaml
-# Example configuration.yaml entry
-sensor:
-  - platform: cpuspeed
-```
-
-{% configuration %}
-name:
-  description: Name to use in the frontend.
-  required: false
-  type: string
-  default: CPU speed
-{% endconfiguration %}
+{% include integrations/config_flow.md %}