RUBY-2610 Add versioned API examples for docs (#2311)
RUBY-2610 Add versioned API examples for docs (#2311)

* RUBY-2610 Add versioned API examples for docs

* exercise and close the clients

Co-authored-by: Oleg Pudeyev <e6fb06210fafc02fd7479ddbed2d042cc3a5155e@olegp.name>
mongodb/mongo-ruby-driver,mongodb/mongo-ruby-driver,mongodb/mongo-ruby-driver