Removed link "importing to gitlab" because it's in "Documentation". Organized...

Removed link "importing to gitlab" because it's in "Documentation". Organized links in alphabetical order.

doc/workflow/README.md

 # Workflow
 
-- [Feature branch workflow](workflow.md)
-- [Project forking workflow](forking_workflow.md)
-- [Project Features](project_features.md)
 - [Authorization for merge requests](authorization_for_merge_requests.md)
+- [Change your time zone](timezone.md)
+- [Feature branch workflow](workflow.md)
+- [GitLab Flow](gitlab_flow.md)
 - [Groups](groups.md)
+- [Keyboard shortcuts](shortcuts.md)
 - [Labels](labels.md)
-- [GitLab Flow](gitlab_flow.md)
 - [Notifications](notifications.md)
-- [Importing to GitLab](importing/README.md)
-- [Two-factor Authentication (2FA)](two_factor_authentication.md)
+- [Project Features](project_features.md)
+- [Project forking workflow](forking_workflow.md)
 - [Protected branches](protected_branches.md)
-- [Change your time zone](timezone.md)
-- [Keyboard shortcuts](shortcuts.md)
+- [Two-factor Authentication (2FA)](two_factor_authentication.md)
 - [Web Editor](web_editor.md)
 - ["Work In Progress" Merge Requests](wip_merge_requests.md)
\ No newline at end of file