Extra customization in gitlab.yml not work

Created by: glebcha

Uncommented this section in /config/gitlab.yml:

#4 (closed). Extra customization

==========================

extra: ## Google analytics. Uncomment if you want it # google_analytics_id: '_your_tracking_id'

## Text under sign-in page (Markdown enabled)
 sign_in_text: test text 
   ![Company Logo](http://www.mydomain.com/logo.png)
   [Learn more about CompanyName](http://www.mydomain.com/)

Restarted Gitlab and saw no changes for login screen.

Gitlab version 5.2, check passed with green.