update repo recreation details

doc/raketasks/maintenance.md

@@ -115,8 +115,10 @@ Checking GitLab ... Finished
 
 This will create satellite repositories for all your projects.
 
-If necessary, remove the `tmp/repo_satellites` directory and rerun the command below.
+If necessary, remove the `repo_satellites` directory and rerun the commands below.
 
 ```
-bundle exec rake gitlab:satellites:create RAILS_ENV=production
+sudo -u git -H mkdir -p /home/git/gitlab-satellites
+sudo -u git -H bundle exec rake gitlab:satellites:create RAILS_ENV=production
+sudo chmod u+rwx,g=rx,o-rwx /home/git/gitlab-satellites
 ```