Update python_script.markdown (#12139)

perjury · web-flow · commit 669e03af536e · 2020-02-20T13:34:02.000+01:00
Clarification of yaml to call  python_script
diff --git a/source/_integrations/python_script.markdown b/source/_integrations/python_script.markdown
@@ -65,8 +65,10 @@ if entity_id is not None:
 The above `python_script` can be called using the following YAML as an input.
 
 ```yaml
-entity_id: light.bedroom
-rgb_color: [255, 0, 0]
+service: python_script.turn_on_light
+  data:
+    entity_id: light.bedroom
+    rgb_color: [255, 0, 0]
 ```
 
 ## Documenting your Python scripts
