Merge pull request #1236 from aollier/git_config

Show settings and additional information.

Author: ben

book/01-introduction/sections/first-time-setup.asc

@@ -25,6 +25,13 @@ If you are using version 2.x or later of Git for Windows, there is also a system
 `C:\Documents and Settings\All Users\Application Data\Git\config` on Windows XP, and in `C:\ProgramData\Git\config` on Windows Vista and newer.
 This config file can only be changed by `git config -f <file>` as an admin.
 
+You can view all of your settings and where they are coming from using:
+
+[source,console]
+----
+$ git config --list --show-origin
+----
+
 ==== Your Identity
 
 The first thing you should do when you install Git is to set your user name and email address.