added link to "importing to GitLab". Also organized docs in alphabetical order.

doc/README.md

@@ -3,6 +3,8 @@
 ## User documentation
 
 - [API](api/README.md) Automate GitLab via a simple and powerful API.
+- [GitLab as OAuth2 authentication service provider](integration/oauth_provider.md). It allows you to login to other applications from GitLab.
+- [Importing to GitLab](doc/importing/README.md).
 - [Markdown](markdown/markdown.md) GitLab's advanced formatting system.
 - [Permissions](permissions/permissions.md) Learn what each role in a project (guest/reporter/developer/master/owner) can do.
 - [Project Services](project_services/project_services.md) Integrate a project with external services, such as CI and chat.
@@ -10,22 +12,21 @@
 - [SSH](ssh/README.md) Setup your ssh keys and deploy keys for secure access to your projects.
 - [Web hooks](web_hooks/web_hooks.md) Let GitLab notify you when new code has been pushed to your project.
 - [Workflow](workflow/README.md) Using GitLab functionality and importing projects from GitHub and SVN.
-- [GitLab as OAuth2 authentication service provider](integration/oauth_provider.md). It allows you to login to other applications from GitLab.
 
 ## Administrator documentation
 
+- [Custom git hooks](hooks/custom_hooks.md) Custom git hooks (on the filesystem) for when web hooks aren't enough.
 - [Install](install/README.md) Requirements, directory structures and installation from source.
 - [Integration](integration/README.md) How to integrate with systems such as JIRA, Redmine, LDAP and Twitter.
+- [Issue closing](customization/issue_closing.md) Customize how to close an issue from commit messages.
+- [Libravatar](customization/libravatar.md) Use Libravatar for user avatars.
+- [Log system](logs/logs.md) Log system.
+- [Operations](operations/README.md) Keeping GitLab up and running
 - [Raketasks](raketasks/README.md) Backups, maintenance, automatic web hook setup and the importing of projects.
-- [Custom git hooks](hooks/custom_hooks.md) Custom git hooks (on the filesystem) for when web hooks aren't enough.
-- [System hooks](system_hooks/system_hooks.md) Notifications when users, projects and keys are changed.
 - [Security](security/README.md) Learn what you can do to further secure your GitLab instance.
+- [System hooks](system_hooks/system_hooks.md) Notifications when users, projects and keys are changed.
 - [Update](update/README.md) Update guides to upgrade your installation.
 - [Welcome message](customization/welcome_message.md) Add a custom welcome message to the sign-in page.
-- [Issue closing](customization/issue_closing.md) Customize how to close an issue from commit messages.
-- [Libravatar](customization/libravatar.md) Use Libravatar for user avatars.
-- [Operations](operations/README.md) Keeping GitLab up and running
-- [Log system](logs/logs.md) Log system
 
 ## Contributor documentation