Move the section on abstraction to the Abstract Protocol section, and split section 5.2 to avoid renumbering. fixes #512
Move the section on abstraction to the Abstract Protocol section, and split section 5.2 to avoid renumbering.
fixes #512

Signed-off-by: Daira Hopwood <cd7d43d5556a38ce626d53826fddc46adc597539@jacaranda.org>

zcash/zips,zcash/zips,zcash/zips,zcash/zips