Add link to customers.gitlab.com from about.gitlab.com
Currently, customers need to log into the customers.gitlab.com app in order to upgrade or renew. Since this isn't a frequent action, it's easy for customers to forget the URL.
We should make it very easy to find the place that customers go to pay us. We should add links to about.gitlab.com to make it easy to find customers.gitlab.com
A simple MVC could include adding a link to the footer of about.gitlab.com ex: "Renew your license" or "Customer Portal"
GIVEN: I am a visitor to about.gitlab.com and any of the sub-pages under it that contain a footer
WHEN: I view the footer
THEN: I will see a link to customers.gitlab.com with the title of