minor format fix [skip ci]

docs/guide/structure-applications.md

@@ -647,12 +647,8 @@ an application will undergo the following lifecycle:
 3. The entry script calls [[yii\base\Application::run()]] to run the application:
 
   3.1 Trigger the [[yii\base\Application::EVENT_BEFORE_REQUEST|EVENT_BEFORE_REQUEST]] event.
-    3.2 Handle the request:
-
-        3.2.1 Resolve the request into a [route](runtime-routing.md) and the associated parameters.
-        3.2.2 Create the module, controller and action objects as specified by the route.
-        3.2.3 Run the action.
-
+  3.2 Handle the request: resolve the request into a [route](runtime-routing.md) and the associated parameters;
+      create the module, controller and action objects as specified by the route; and run the action.
   3.3 Trigger the [[yii\base\Application::EVENT_AFTER_REQUEST|EVENT_AFTER_REQUEST]] event.
   3.4 Send response to the end user.