Finished application guide [skip ci]

docs/guide/concept-aliases.md

@@ -109,7 +109,7 @@ The following is the list of the predefined aliases:
 - `@yii`: the directory where the `BaseYii.php` file is located (also called the framework directory).
 - `@app`: the [[yii\base\Application::basePath|base path]] of the currently running application.
 - `@runtime`: the [[yii\base\Application::runtimePath|runtime path]] of the currently running application.
-- `@vendor`: the Composer vendor directory.
+- `@vendor`: the [[yii\base\Application::vendorPath|Composer vendor directory].
 - `@webroot`: the Web root directory of the currently running Web application.
 - `@web`: the base URL of the currently running Web application.
 

framework/base/Module.php

@@ -248,7 +248,7 @@ class Module extends ServiceLocator
 
     /**
      * Sets the directory that contains the layout files.
-     * @param string $path the root directory of layout files.
+     * @param string $path the root directory or path alias of layout files.
      * @throws InvalidParamException if the directory is invalid
      */
     public function setLayoutPath($path)