Update import.md documentation to specify correct directory ownership and permissions.

doc/raketasks/import.md

@@ -16,12 +16,22 @@ it in the `/etc/gitlab/gitlab.rb` file.
 - For manual installations, it is usually located at: `/home/git/repositories` or you can see where
 your repositories are located by looking at `config/gitlab.yml` under the `gitlab_shell => repos_path` entry.
 
+New folder needs to have git user ownership and read/write/execute access for git user and its group:
+
+```
+$ mkdir new_group
+$ chown git:git new_group
+$ chmod 770 new_group
+```
+
 ### Copy your bare repositories inside this newly created folder:
 
 ```
 $ cp -r /old/git/foo.git/ /home/git/repositories/new_group/
 ```
 
+`foo.git` needs to be owned by the git user and git users group.
+
 ### Run the command below depending on your type of installation:
 
 #### Omnibus Installation