Documement `makeRecursivelyOverridable`
Documement `makeRecursivelyOverridable`

(cherry picked from commit aefb727bec13003156a8ed5e30261e3aba118648)

ryantrinkle/try-reflex,reflex-frp/reflex-platform,reflex-frp/reflex-platform,reflex-frp/reflex-platform