Merge pull request #8139 from cirosantilli/doc-import-md-style

Fix doc raketasts import md style

doc/raketasks/import.md

 # Import
 
-### Import bare repositories into GitLab project instance
+## Import bare repositories into GitLab project instance
 
 Notes:
 
-* project owner will be a first admin
-* groups will be created as needed
-* group owner will be the first admin
-* existing projects will be skipped
+- project owner will be a first admin
+- groups will be created as needed
+- group owner will be the first admin
+- existing projects will be skipped
 
 How to use:
 
 1. copy your bare repos under git repos_path (see `config/gitlab.yml` gitlab_shell -> repos_path)
-2. run the command below
+1. run the command below
 
 ```
 # omnibus-gitlab