Add data description to Airly config flow (#181008)

homeassistant/components/airly/quality_scale.yaml

@@ -9,9 +9,7 @@ rules:
   config-flow-test-coverage:
     status: todo
     comment: The config flow test should either result in an entry being created or an abort.
-  config-flow:
-    status: todo
-    comment: Add data_description.
+  config-flow: done
   dependency-transparency: done
   docs-actions:
     status: exempt

homeassistant/components/airly/strings.json

@@ -15,7 +15,11 @@
           "latitude": "[%key:common::config_flow::data::latitude%]",
           "longitude": "[%key:common::config_flow::data::longitude%]"
         },
-        "description": "To generate API key go to {developer_registration_url}"
+        "data_description": {
+          "api_key": "To generate API key go to {developer_registration_url}.",
+          "latitude": "The latitude of your location.",
+          "longitude": "The longitude of your location."
+        }
       }
     }
   },