fixed wrong file name.

docs/guide/README.md

@@ -57,7 +57,7 @@ Key Concepts
 * [Properties](concept-properties.md)
 * [Events](concept-events.md)
 * [Behaviors](concept-behaviors.md)
-* [Configurations](concept-configs.md)
+* [Configurations](concept-configurations.md)
 * [Aliases](concept-aliases.md)
 * [Class Autoloading](concept-autoloading.md)
 * [Service Locator](concept-service-locator.md)

docs/guide/concept-aliases.md

@@ -35,8 +35,8 @@ Yii::setAlias('@foobar', '@foo/bar');
 
 Root aliases are usually defined during the [bootstrapping](runtime-bootstrapping.md) stage.
 For example, you may call [[Yii::setAlias()]] in the [entry script](structure-entry-scripts.md).
-For convenience, [Application](structure-applications.md) provides writable property named `aliases`
+For convenience, [Application](structure-applications.md) provides a writable property named `aliases`
-that you can configure in the application [configuration](concept-configs.md), like the following,
+that you can configure in the application [configuration](concept-configurations.md), like the following,
 
 ```php
 return [
@@ -115,7 +115,7 @@ The following is the list of the predefined aliases:
 
 The `@yii` alias is defined when you include the `Yii.php` file in your [entry script](structure-entry-scripts.md),
 while the rest of the aliases are defined in the application constructor when applying the application
-[configuration](concept-configs.md).
+[configuration](concept-configurations.md).
 
 
 Extension Aliases

docs/guide/concept-behaviors.md

@@ -98,7 +98,7 @@ class User extends ActiveRecord
 }
 ```
 
-The [[yii\base\Component::behaviors()|behaviors()]] method should return a list of behavior [configurations](concept-configs.md).
+The [[yii\base\Component::behaviors()|behaviors()]] method should return a list of behavior [configurations](concept-configurations.md).
 Each behavior configuration can be either a behavior class name or a configuration array.
 
 You may associate a name with a behavior by specifying the array key corresponding to the behavior configuration.

docs/guide/concept-components.md

@@ -61,7 +61,7 @@ class MyClass extends Object
 }
 ```
 
-This will make your components [configurable](concept-configs.md) when they are being created. For example,
+This will make your components [configurable](concept-configurations.md) when they are being created. For example,
 
 ```php
 $component = new MyClass(1, 2, ['prop1' => 3, 'prop2' => 4]);

docs/guide/intro-upgrade-from-v1.md

@@ -105,7 +105,7 @@ $object = Yii::createObject([
 ], [$param1, $param2]);
 ```
 
-More details about configurations can be found in the [Object Configurations](concept-configs.md) chapter.
+More details about configurations can be found in the [Object Configurations](concept-configurations.md) chapter.
 
 
 Events