Replace category with onboarding label
Replaces the Category:Onboarding label with onboarding as Category:Onboarding is a Growth section category label https://about.gitlab.com/handbook/product/categories/features/#growth-section
Replaces the Category:Onboarding label with onboarding as Category:Onboarding is a Growth section category label https://about.gitlab.com/handbook/product/categories/features/#growth-section