Specify that an instance must be present in a VPC before creating a peering

[outscale-toa]

Hello,

Since VPC peering are not working if not VPC are spawned (and those are spawned when there's at least one running instance on them), vpc peering objects requires depends_on = outscale_vm.foobar to be working properly (DOC-3755).

Can you please indicate on the documentation that depends_on pointing to one VPC instance should (must) be used on VPC peering in order to avoid the route issue.

Thanks