add YARD doc for Faker::Food (#1802)
add YARD doc for Faker::Food (#1802)

* add food docs

* Apply suggestions from code review

Co-Authored-By: Connor Shea <ce5845b12f2f1d773f833057124e88241e8fbaf1@gmail.com>

* Apply suggestions from code review

Co-Authored-By: Connor Shea <ce5845b12f2f1d773f833057124e88241e8fbaf1@gmail.com>

* Apply suggestions from code review

stympy/faker