diff --git a/README.md b/README.md
index 319d1ae..c6bfa8f 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ The package provides an ability to record performance profiles.
 The package could be installed with [Composer](https://getcomposer.org):
 
 ```shell
-composer require yiisoft/profiler
+composer require --dev yiisoft/profiler
 ```
 
 If you use this package with [Yii Config](https://github.com/yiisoft/config) and there will be no `@runtime` alias in `yiisoft/aliases` configuration defined, application will throw "Invalid path alias" error.
diff --git a/composer.json b/composer.json
index 88e16e6..c60d167 100644
--- a/composer.json
+++ b/composer.json
@@ -63,4 +63,4 @@
         "test": "phpunit --testdox --no-interaction",
         "test-watch": "phpunit-watcher watch"
     }
-}
\ No newline at end of file
+}
diff --git a/docs/internals.md b/docs/internals.md
index 8dc4049..087a514 100644
--- a/docs/internals.md
+++ b/docs/internals.md
@@ -25,7 +25,7 @@ The code is statically analyzed with [Psalm](https://psalm.dev/). To run static
 ./vendor/bin/psalm
 ```
 
-## Rector
+## Code style
 
 Use [Rector](https://github.com/rectorphp/rector) to make codebase follow some specific rules or
 use either newest or any specific version of PHP:
@@ -34,11 +34,10 @@ use either newest or any specific version of PHP:
 ./vendor/bin/rector
 ```
 
-## Composer require checker
+## Dependencies
 
-This package uses [composer-require-checker](https://github.com/maglnet/ComposerRequireChecker) to check if all dependencies are correctly defined in `composer.json`.
-
-To run the checker, execute the following command:
+This package uses [composer-require-checker](https://github.com/maglnet/ComposerRequireChecker) to check if
+all dependencies are correctly defined in `composer.json`. To run the checker, execute the following command:
 
 ```shell
 ./vendor/bin/composer-require-checker