F #477: doc: network_id is not required anymore

Author: treywelsh

website/docs/r/template.html.markdown

@@ -156,15 +156,15 @@ Minimum 1 item. Maximum 8 items.
 
 `nic` supports the following arguments
 
-* `network_id` - (Required) ID of the virtual network to attach to the virtual machine.
+* `network_id` - (Optional) ID of the virtual network to attach to the virtual machine.
 * `ip` - (Optional) IP of the virtual machine on this network.
 * `mac` - (Optional) MAC of the virtual machine on this network.
 * `model` - (Optional) Nic model driver. Example: `virtio`.
 * `physical_device` - (Optional) Physical device hosting the virtual network.
 * `security_groups` - (Optional) List of security group IDs to use on the virtual network.
 * `network_mode_auto` - (Optional) A boolean letting the scheduler pick the Virtual Networks the VM NICs will be attached to.
-* `sched_requirements` - (Optional) A boolean expression to select virtual networks (evaluates to true) to attach the NIC.
-* `sched_rank` - (Optional) Arithmetic expression to sort the suitable Virtual Networks for this NIC.
+* `sched_requirements` - (Optional) A boolean expression to select virtual networks (evaluates to true) to attach the NIC,  when `network_mode_auto` is true.
+* `sched_rank` - (Optional) Arithmetic expression to sort the suitable Virtual Networks for this NIC, when `network_mode_auto` is true.
 
 Minimum 1 item. Maximum 8 items.
 

website/docs/r/virtual_machine.html.markdown

@@ -144,16 +144,16 @@ A disk update will be triggered in adding or removing a `disk` section, or by a
 
 `nic` supports the following arguments
 
-* `network_id` - (Required) ID of the virtual network to attach to the virtual machine.
+* `network_id` - (Optional) ID of the virtual network to attach to the virtual machine.
 * `ip` - (Optional) IP of the virtual machine on this network.
 * `mac` - (Optional) MAC of the virtual machine on this network.
 * `model` - (Optional) Nic model driver. Example: `virtio`.
 * `virtio_queues` - (Optional) Virtio multi-queue size. Only if `model` is `virtio`.
 * `physical_device` - (Optional) Physical device hosting the virtual network.
 * `security_groups` - (Optional) List of security group IDs to use on the virtual network.
-* `network_mode_auto` - (Optional) A boolean letting the scheduler pick the Virtual Networks the VM NICs will be attached to.
-* `sched_requirements` - (Optional) A boolean expression to select virtual networks (evaluates to true) to attach the NIC.
-* `sched_rank` - (Optional) Arithmetic expression to sort the suitable Virtual Networks for this NIC.
+* `network_mode_auto` - (Optional) A boolean letting the scheduler pick the Virtual Networks the VM NICs will be attached to. Can only be used at VM creation.
+* `sched_requirements` - (Optional) A boolean expression to select virtual networks (evaluates to true) to attach the NIC,  when `network_mode_auto` is true. Can only be used at VM creation.
+* `sched_rank` - (Optional) Arithmetic expression to sort the suitable Virtual Networks for this NIC, when `network_mode_auto` is true. Can only be used at VM creation.
 
 Minimum 1 item. Maximum 8 items.