Songpal code improvement (#13327)

source/_integrations/songpal.markdown

@@ -6,6 +6,7 @@ ha_category:
 ha_iot_class: Local Push
 ha_release: 0.65
 ha_config_flow: true
+ha_quality_scale: gold
 ha_codeowners:
   - '@rytilahti'
   - '@shenxn'
@@ -58,6 +59,6 @@ For a list of available settings and their values use [`songpal sound`](https://
 
 | Service data attribute | Optional | Description                                      |
 |------------------------|----------|--------------------------------------------------|
-| `entity_id`            |      yes | Target entity, leave unset for all devices       |
+| `entity_id`            |      yes | Target entity. To target all songpal devices, use `all` |
 | `name`                 |       no | Configuration variable, e.g., `nightmode`         |
 | `value`                |       no | New configuration value, e.g., `on`               |