Missing link on '2 - Uses#Maintenance Mode'

[alabeduarte]

Hi there,

Thank you for wrapping up most of the concepts regarding feature flags onto this repo. I've tried something similar on this repo as well.

I'm opening this issue because it looks like there is a missing link underneath Maintenance Mode session:

Maintenance Mode
Put portions (or your entire application) into maintenance mode. Read more here about how LaunchDarkly handles whole-site maintenance, whole-feature maintenance and per-feature maintenance modes.

Cheers.