Update documentation to avoid confusion
Update documentation to avoid confusion

disk_type_id defaults to different values in local build and remote build.
Documentation should reflect to what value the remote build defaults.
KohlsTechnology/packer,hashicorp/packer,rnaveiras/packer,dave2/packer,p1-nico/packer,KohlsTechnology/packer,taliesins/packer,pieter-lazzaro/packer,tb3088/packer,ChrisLundquist/packer,pieter-lazzaro/packer,pvandervelde/packer,ricardclau/packer,timsutton/packer,routelastresort/packer,tas50/packer,mkuzmin/packer,tb3088/packer,timsutton/packer,sean-/packer,p1-nico/packer,tas50/packer,grubernaut/packer,tas50/packer,rnaveiras/packer,tas50/packer,markpeek/packer,taliesins/packer,pvandervelde/packer,routelastresort/packer,jen20/packer,markpeek/packer,KohlsTechnology/packer,rnaveiras/packer,pecigonzalo/packer,tb3088/packer,sean-/packer,rnaveiras/packer,taliesins/packer,paulmey/packer,arizvisa/packer,dave2/packer,p1-nico/packer,routelastresort/packer,markpeek/packer,bryson/packer,pecigonzalo/packer,tb3088/packer,mitchellh/packer,grubernaut/packer,hashicorp/packer,ChrisLundquist/packer,dave2/packer,arizvisa/packer,p1-nico/packer,mitchellh/packer,dave2/packer,ricardclau/packer,pvandervelde/packer,timsutton/packer,mkuzmin/packer,hashicorp/packer,mitchellh/packer,p1-nico/packer,KohlsTechnology/packer,sean-/packer,rnaveiras/packer,pvandervelde/packer,arizvisa/packer,arizvisa/packer,jen20/packer,routelastresort/packer,pieter-lazzaro/packer,tas50/packer,jen20/packer,youhong316/packer,hashicorp/packer,jen20/packer,ChrisLundquist/packer,sean-/packer,paulmey/packer,arizvisa/packer,mkuzmin/packer,mkuzmin/packer,grubernaut/packer,ricardclau/packer,KohlsTechnology/packer,ChrisLundquist/packer,p1-nico/packer,grubernaut/packer,pvandervelde/packer,jen20/packer,bryson/packer,pecigonzalo/packer,grubernaut/packer,youhong316/packer,taliesins/packer,youhong316/packer,arizvisa/packer,pecigonzalo/packer,tb3088/packer,markpeek/packer,ricardclau/packer,paulmey/packer,taliesins/packer,mitchellh/packer,sean-/packer,pieter-lazzaro/packer,mkuzmin/packer,tb3088/packer,bryson/packer,bryson/packer,bryson/packer,youhong316/packer,paulmey/packer,mkuzmin/packer,taliesins/packer,ricardclau/packer,mitchellh/packer,pvandervelde/packer,timsutton/packer,dave2/packer,routelastresort/packer,tas50/packer,markpeek/packer,timsutton/packer,dave2/packer,ricardclau/packer,grubernaut/packer,paulmey/packer,bryson/packer,sean-/packer,ChrisLundquist/packer,youhong316/packer,paulmey/packer,pieter-lazzaro/packer,markpeek/packer,rnaveiras/packer,jen20/packer,pieter-lazzaro/packer,KohlsTechnology/packer,timsutton/packer,ChrisLundquist/packer,youhong316/packer