docs(nat): fix docs issues

docs/data-sources/nat_gateway_v2.md

@@ -16,6 +16,9 @@ data "flexibleengine_nat_gateway_v2" "natgateway" {
 
 ## Argument Reference
 
+* `region` - (Optional, String) The region in which to query the data source. If omitted, the provider-level region
+  will be used.
+
 * `id` - (Optional, String) Specifies the ID of the NAT gateway.
 
 * `name` - (Optional, String) Specifies the NAT gateway name. The name can contain only digits, letters,
@@ -36,3 +39,7 @@ data "flexibleengine_nat_gateway_v2" "natgateway" {
   characters, and angle brackets (<) and (>) are not allowed.
 
 * `status` - (Optional, String) Specifies the status of the NAT gateway.
+
+## Attribute Reference
+
+All the arguments above can also be exported attributes.

docs/resources/nat_dnat_rule_v2.md

@@ -44,33 +44,33 @@ resource "flexibleengine_nat_dnat_rule_v2" "dnat_2" {
 
 The following arguments are supported:
 
-* `nat_gateway_id` - (Required) Specifies the ID of the nat gateway this dnat rule belongs to.
+* `nat_gateway_id` - (Required, String, ForceNew) Specifies the ID of the nat gateway this dnat rule belongs to.
   Changing this creates a new dnat rule.
 
-* `floating_ip_id` - (Required) Specifies the ID of the floating IP address.
+* `floating_ip_id` - (Required, String, ForceNew) Specifies the ID of the floating IP address.
   Changing this creates a new dnat rule.
 
-* `protocol` - (Required) Specifies the protocol type. Currently,
+* `protocol` - (Required, String, ForceNew) Specifies the protocol type. Currently,
   TCP, UDP, and ANY are supported. Changing this creates a new dnat rule.
 
-* `internal_service_port` - (Required) Specifies the port used by ECSs or BMSs to provide services
+* `internal_service_port` - (Required, Int, ForceNew) Specifies the port used by ECSs or BMSs to provide services
   that are accessible from external systems. Changing this creates a new dnat rule.
 
-* `external_service_port` - (Required) Specifies the port for providing services
+* `external_service_port` - (Required, Int, ForceNew) Specifies the port for providing services
   that are accessible from external systems. Changing this creates a new dnat rule.
 
-* `port_id` - (Optional) Specifies the port ID of an ECS or a BMS. This parameter is
+* `port_id` - (Optional, String, ForceNew) Specifies the port ID of an ECS or a BMS. This parameter is
   mandatory in VPC scenario. Changing this creates a new dnat rule.
 
-* `private_ip` - (Optional) Specifies the private IP address of a user, for example,
+* `private_ip` - (Optional, String, ForceNew) Specifies the private IP address of a user, for example,
   the IP address of a VPC for dedicated connection. This parameter is mandatory in
   Direct Connect scenario. Changing this creates a new dnat rule.
 
-* `description` - (Optional) Specifies the description of the dnat rule.
+* `description` - (Optional, String, ForceNew) Specifies the description of the dnat rule.
   The value is a string of no more than 255 characters, and angle brackets (<>) are not allowed.
   Changing this creates a new dnat rule.
 
-## Attributes Reference
+## Attribute Reference
 
 In addition to the arguments listed above, the following computed attributes are exported:
 

docs/resources/nat_gateway_v2.md

@@ -57,7 +57,7 @@ The following arguments are supported:
 * `description` - (Optional, String) Specifies the description of the nat gateway.
   The value contains 0 to 255 characters, and angle brackets (<) and (>) are not allowed.
 
-## Attributes Reference
+## Attribute Reference
 
 In addition to all arguments above, the following attributes are exported:
 
@@ -69,8 +69,8 @@ In addition to all arguments above, the following attributes are exported:
 
 This resource provides the following timeouts configuration options:
 
-* `create` - Default is 10 minute.
-* `delete` - Default is 10 minute.
+* `create` - Default is 10 minutes.
+* `delete` - Default is 10 minutes.
 
 ## Import
 

docs/resources/nat_snat_rule_v2.md

@@ -35,28 +35,29 @@ resource "flexibleengine_nat_snat_rule_v2" "snat_2" {
 
 The following arguments are supported:
 
-* `region` - (Optional) The region in which to obtain the V2 nat client.
+* `region` - (Optional, String, ForceNew) The region in which to obtain the V2 nat client.
     If omitted, the `region` argument of the provider is used. Changing this
     creates a new snat rule.
 
-* `nat_gateway_id` - (Required) ID of the nat gateway this snat rule belongs to.
+* `nat_gateway_id` - (Required, String, ForceNew) ID of the nat gateway this snat rule belongs to.
     Changing this creates a new snat rule.
 
-* `floating_ip_id` - (Required) ID of the floating ip this snat rule connets to.
+* `floating_ip_id` - (Required, String, ForceNew) ID of the floating ip this snat rule connets to.
     Changing this creates a new snat rule.
 
-* `subnet_id` - (Optional) ID of the VPC Subnet this snat rule connects to.
+* `subnet_id` - (Optional, String, ForceNew) ID of the VPC Subnet this snat rule connects to.
     This parameter and `cidr` are alternative. Changing this creates a new snat rule.
 
-* `cidr` - (Optional) Specifies CIDR, which can be in the format of a network segment or a host IP address.
-    This parameter and `subnet_id` are alternative. Changing this creates a new snat rule.
+* `cidr` - (Optional, String, ForceNew) Specifies CIDR, which can be in the format of a network segment or a host IP
+    address. This parameter and `subnet_id` are alternative. Changing this creates a new snat rule.
 
-* `source_type` - (Optional) Specifies the scenario. The valid value is 0 (VPC scenario) and 1 (Direct Connect scenario).
+* `source_type` - (Optional, Int, ForceNew) Specifies the scenario. The valid value is 0 (VPC scenario) and 1
+    (Direct Connect scenario).
     Only `cidr` can be specified over a Direct Connect connection.
     If no value is entered, the default value 0 (VPC scenario) is used.
     Changing this creates a new snat rule.
 
-## Attributes Reference
+## Attribute Reference
 
 In addition to all arguments above, the following attributes are exported:
 
@@ -68,8 +69,8 @@ In addition to all arguments above, the following attributes are exported:
 
 This resource provides the following timeouts configuration options:
 
-* `create` - Default is 10 minute.
-* `delete` - Default is 10 minute.
+* `create` - Default is 10 minutes.
+* `delete` - Default is 10 minutes.
 
 ## Import