Updated management docs clarifying options

docs/management.md

@@ -24,7 +24,9 @@ Create an SVN repository mirror.
     cd gitlab-mirrors
     ./add_mirror.sh --svn --project-name someproject --mirror svn+ssh://user@svn.example.com/srv/repos/someproject --authors-file ./authors.txt
 
-The `--authors-file` option is an optional argument.  It serves the same purpose as the `git-svn --authors-file` option.  It is an authors file for mapping SVN users to git users.  See the [`git-svn(1)`][git-svn-man] man page for more details.  Notice in [`config.sh`](../config.sh.SAMPLE) there's an option `git_svn_additional_options`.  This option affects `add_mirror.sh` and the creation of a mirror only.  It doesn't affect the synchronization of the svn repository.  See the [`git-svn(1)`][git-svn-man] man page under `init` COMMAND options.
+The `--authors-file` option is an optional argument.  It serves the same purpose as the `git-svn --authors-file` option.  It is an authors file for mapping SVN users to git users.  See the [`git-svn(1)`][git-svn-man] man page for more details.
+
+Notice in [`config.sh`](../config.sh.SAMPLE) there's an option `git_svn_additional_options`.  This option affects `add_mirror.sh` and the creation of a mirror only.  It doesn't affect the synchronization of the svn repository.  See the [`git-svn(1)`][git-svn-man] man page under `init` COMMAND options for available values which can be set.
 
 ### Bazaar