Fix docs: add missing $app when calling withMiddleware, add missing simicolons

Author: DanielBadura

.gitignore

@@ -4,3 +4,4 @@ phpunit.xml
 .phpunit.cache
 .phpcs-cache
 phpstan.neon
+docs_php

docs/pages/facades.md

@@ -61,7 +61,7 @@ $messages = Store::load(
     new Criteria(
         new AggregateIdCriterion('123'),
     ),
-)
+);
 ```
 !!! note
 

docs/pages/installation.md

@@ -41,9 +41,9 @@ You should add the middleware to your `bootstrap/app.php` file.
 ```php
 use Patchlevel\LaravelEventSourcing\Middleware\EventSourcingMiddleware;
 
-->withMiddleware(static function (Middleware $middleware): void {
+$app->withMiddleware(static function (Middleware $middleware): void {
     $middleware->append(EventSourcingMiddleware::class);
-})
+});
 ```
 !!! success