Merge branch 'gp/document-dotfiles-in-templates-are-not-copied'

Doc update.

* gp/document-dotfiles-in-templates-are-not-copied:
  init: document dotfiles exclusion on template copy

Documentation/git-init.txt

@@ -116,8 +116,8 @@ does not exist, it will be created.
 TEMPLATE DIRECTORY
 ------------------
 
-The template directory contains files and directories that will be copied to
-the `$GIT_DIR` after it is created.
+Files and directories in the template directory whose name do not start with a
+dot will be copied to the `$GIT_DIR` after it is created.
 
 The template directory will be one of the following (in order):