Fixes for documentation - TERSI 1007

Author: Rakhi Narayan

website/docs/r/core_drg_attachment.html.markdown

@@ -37,14 +37,12 @@ resource "oci_core_drg_attachment" "test_drg_attachment" {
 	freeform_tags = {"Department"= "Finance"}
 	network_details {
 		#Required
-		id = var.drg_attachment_network_details_id
+		id = oci_core_vcn.test_vcn.id
 		type = var.drg_attachment_network_details_type
 
 		#Optional
 		route_table_id = oci_core_route_table.test_route_table.id
 	}
-	route_table_id = oci_core_route_table.test_route_table.id
-	vcn_id = oci_core_vcn.test_vcn.id
 }
 ```
 
@@ -69,13 +67,13 @@ The following arguments are supported:
 		* [Transit Routing: Access to Multiple VCNs in Same Region](https://docs.cloud.oracle.com/iaas/Content/Network/Tasks/transitrouting.htm)
 		* [Transit Routing: Private Access to Oracle Services](https://docs.cloud.oracle.com/iaas/Content/Network/Tasks/transitroutingoracleservices.htm) 
 	* `type` - (Required) (Updatable) The type can be one of these values: `IPSEC_TUNNEL`, `REMOTE_PEERING_CONNECTION`, `VCN`, `VIRTUAL_CIRCUIT`
-* `route_table_id` - (Optional) (Updatable) The [OCID](https://docs.cloud.oracle.com/iaas/Content/General/Concepts/identifiers.htm) of the route table used by the DRG attachment.
+* `route_table_id` - (Deprecated) (Optional) (Updatable) The [OCID](https://docs.cloud.oracle.com/iaas/Content/General/Concepts/identifiers.htm) of the route table used by the DRG attachment.
 
 	If you don't specify a route table here, the DRG attachment is created without an associated route table. The Networking service does NOT automatically associate the attached VCN's default route table with the DRG attachment. For information about why you would associate a route table with a DRG attachment, see:
 	* [Transit Routing: Access to Multiple VCNs in Same Region](https://docs.cloud.oracle.com/iaas/Content/Network/Tasks/transitrouting.htm)
 	* [Transit Routing: Private Access to Oracle Services](https://docs.cloud.oracle.com/iaas/Content/Network/Tasks/transitroutingoracleservices.htm) 
 	This field is deprecated. Instead, use the networkDetails field to specify the VCN route table for this attachment. 
-* `vcn_id` - (Optional) The [OCID](https://docs.cloud.oracle.com/iaas/Content/General/Concepts/identifiers.htm) of the VCN. This field is deprecated. Instead, use the `networkDetails` field to specify the [OCID](https://docs.cloud.oracle.com/iaas/Content/General/Concepts/identifiers.htm) of the attached resource. 
+* `vcn_id` - (Deprecated) (Optional) The [OCID](https://docs.cloud.oracle.com/iaas/Content/General/Concepts/identifiers.htm) of the VCN. This field is deprecated. Instead, use the `networkDetails` field to specify the [OCID](https://docs.cloud.oracle.com/iaas/Content/General/Concepts/identifiers.htm) of the attached resource. 
 * `remove_export_drg_route_distribution_trigger` - (Optional) (Updatable) An optional property when set to true during update disables the export of route Distribution by setting export_drg_route_distribution_id to null.
 
 ** IMPORTANT **