Add a reference to console application to "getting started"

to make users more aware of it, fixes #6841

docs/guide/start-installation.md

@@ -1,7 +1,7 @@
 Installing Yii
 ==============
 
-You can install Yii in two ways, using [Composer](http://getcomposer.org/) or by downloading an archive file.
+You can install Yii in two ways, using the [Composer](http://getcomposer.org/) package manager or by downloading an archive file.
 The former is the preferred way, as it allows you to install new [extensions](structure-extensions.md) or update Yii by simply running a single command.
 
 Standard installations of Yii result in both the framework and an application template being downloaded and installed.

docs/guide/start-workflow.md

@@ -29,6 +29,10 @@ among different pages.
 You should also see a toolbar at the bottom of the browser window.
 This is a useful [debugger tool](tool-debugger.md) provided by Yii to record and display a lot of debugging information, such as log messages, response statuses, the database queries run, and so on.
 
+Additionally to the web application, there is a console script called `yii`, which is located in the applications base directory.
+This script can be used to run background and maintainance tasks for the application, which are described
+in the [Console Application Section](tutoral-console.md).
+
 
 Application Structure <span id="application-structure"></span>
 ---------------------