fix ol items code blocks indentation

events/introduction.md

@@ -93,31 +93,30 @@ Event listeners can halt the progation of a global event to subsequent listeners
 
 1. Returning false
 
-```php
-Event::listen('auth.login', function ($event) {
-    // Handle the event
-
-    return false;
-});
-```
+    ```php
+    Event::listen('auth.login', function ($event) {
+        // Handle the event
+    
+        return false;
+    });
+    ```
 
 2. Returning any non-null value when the event is fired with the `halt` parameter set to true:
 
-```php
-Event::listen('whos.the.captain', fn ($ship) => 'Kirk');
-Event::listen('whos.the.captain', fn ($ship) => 'I am', 10);
-Event::listen('whos.the.captain', fn ($ship) => null, 20);
-
-// Returns array of results ([null, 'I am', 'Kirk'])
-Event::fire('whos.the.captain', payload: ['USS Enterprise']);
-
-// Returns first non-null result ('I am')
-Event::fire('whos.the.captain', payload: ['USS Enterprise'], halt: true);
-```
+    ```php
+    Event::listen('whos.the.captain', fn ($ship) => 'Kirk');
+    Event::listen('whos.the.captain', fn ($ship) => 'I am', 10);
+    Event::listen('whos.the.captain', fn ($ship) => null, 20);
+    
+    // Returns array of results ([null, 'I am', 'Kirk'])
+    Event::fire('whos.the.captain', payload: ['USS Enterprise']);
+    
+    // Returns first non-null result ('I am')
+    Event::fire('whos.the.captain', payload: ['USS Enterprise'], halt: true);
+    ```
 
 >**NOTE:** [Local events](#event-emitter-trait) currently only support the second method, where the call to dispatch the event must set the `halt` parameter to true in order to allow for event halting by listeners.
 
-
 ### Wildcard listeners
 
 When registering an event listener, you may use asterisks to specify wildcard listeners. Wildcard listeners will receive the event name fired first, followed by the parameters passed through to the event as an array.