Update the onboarding link for 12.0
A user found in the alpha that 12.0a5's onboarding is still pointing to 11.5 release notes.
Even though 12.0 notes do not exist yet, we should update the link to make it sure the correct one appears in 12.0.
A user found in the alpha that 12.0a5's onboarding is still pointing to 11.5 release notes.
Even though 12.0 notes do not exist yet, we should update the link to make it sure the correct one appears in 12.0.