Updating topology doc to reflect Zk deprecation.
Updating topology doc to reflect Zk deprecation.

dcadevil/vitess,vitessio/vitess,tinyspeck/vitess,mahak/vitess,tirsen/vitess,vitessio/vitess,mahak/vitess,sougou/vitess,dcadevil/vitess,tirsen/vitess,mahak/vitess,tinyspeck/vitess,mahak/vitess,HubSpot/vitess,dcadevil/vitess,enisoc/vitess,vitessio/vitess,enisoc/vitess,tinyspeck/vitess,sougou/vitess,alainjobart/vitess,vitessio/vitess,HubSpot/vitess,alainjobart/vitess,sougou/vitess,mattharden/vitess,dcadevil/vitess,alainjobart/vitess,mattharden/vitess,enisoc/vitess,mahak/vitess,mattharden/vitess,tirsen/vitess,HubSpot/vitess,enisoc/vitess,alainjobart/vitess,enisoc/vitess,tirsen/vitess,davygeek/vitess,tinyspeck/vitess,vitessio/vitess,sougou/vitess,vitessio/vitess,sougou/vitess,davygeek/vitess,mattharden/vitess,mattharden/vitess,tirsen/vitess,mahak/vitess,tirsen/vitess,dcadevil/vitess,tirsen/vitess,davygeek/vitess,mattharden/vitess,dcadevil/vitess,davygeek/vitess,tinyspeck/vitess,davygeek/vitess,alainjobart/vitess,mahak/vitess,alainjobart/vitess,tinyspeck/vitess,mattharden/vitess,HubSpot/vitess,mattharden/vitess,mattharden/vitess,vitessio/vitess,davygeek/vitess,alainjobart/vitess,HubSpot/vitess,HubSpot/vitess,sougou/vitess,tirsen/vitess,vitessio/vitess,mahak/vitess,tinyspeck/vitess,enisoc/vitess,HubSpot/vitess,davygeek/vitess,tirsen/vitess,dcadevil/vitess,HubSpot/vitess,sougou/vitess,alainjobart/vitess,mattharden/vitess,enisoc/vitess,sougou/vitess