minor format fix [skip ci]

docs/guide/structure-applications.md

@@ -637,23 +637,19 @@ an application will undergo the following lifecycle:
 1. The entry script loads the application configuration as an array.
 2. The entry script creates a new instance of the application:
 
-    2.1 [[yii\base\Application::preInit()|preInit()]] is called, which configures some high priority
-        application properties, such as [[yii\base\Application::basePath|basePath]].
-    2.2 Register the [[yii\base\Application::errorHandler|error handler]].
-    2.3 Configure application properties.
-    2.4 [[yii\base\Application::init()|init()]] is called which further calls
-        [[yii\base\Application::bootstrap()|bootstrap()]] to run bootstrap components.
+  2.1 [[yii\base\Application::preInit()|preInit()]] is called, which configures some high priority
+      application properties, such as [[yii\base\Application::basePath|basePath]].
+  2.2 Register the [[yii\base\Application::errorHandler|error handler]].
+  2.3 Configure application properties.
+  2.4 [[yii\base\Application::init()|init()]] is called which further calls
+      [[yii\base\Application::bootstrap()|bootstrap()]] to run bootstrap components.
 
 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.
-
-    3.3 Trigger the [[yii\base\Application::EVENT_AFTER_REQUEST|EVENT_AFTER_REQUEST]] event.
-    3.4 Send response to the end user.
+  3.1 Trigger the [[yii\base\Application::EVENT_BEFORE_REQUEST|EVENT_BEFORE_REQUEST]] event.
+  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.
 
 4. The entry script receives the exit status from the application and completes the request processing.