* docs\configuration.md added comment about generation GitVersion.yml

Author: sergiorykov

docs/configuration.md

@@ -4,6 +4,8 @@ GitVersion 3.0 is mainly powered by configuration and no longer has branching st
 ## Configuration tool
 If you run `GitVersion init` you will be launched into a configuration tool, it can help you configure GitVersion the way you want it.
 
+It will create file 'GitVersion.yml' in directory where you launched initialization. It can be root repository directory or any subdirectory in case when you have single repository for more then one project or restricted to commit into subdirectory.
+
 **Note:** GitVersion ships with internal default configuration which works with GitHubFlow and GitFlow, probably with others too.
 
 The *develop* branch is set to `ContinuousDeployment` mode by default as we have found that is generally what is needed when using GitFlow.