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+## Profiling
+
+For easier debugging, you can enable the Symfony Profiler.
+This bundle provides an easy way to view the cache tags used in the response headers.
+Additionally, you can inspect the bundle’s configuration.
+
+### Enabling the Symfony Profiler
+
+The Symfony Profiler is enabled by default in the `dev` environment. If you need to enable it in another environment, ensure the following bundle is registered in your `config/bundles.php`:
+
+```php
+Symfony\Bundle\WebProfilerBundle\WebProfilerBundle::class => ['dev' => true, 'test' => true],
diff --git a/doc/10-contribution.md b/doc/11-contribution.md
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