doc(iot): Add documentation for IoT Networks

Author: Clément Decoodt

docs/resources/iot_network.md

@@ -0,0 +1,67 @@
+---
+layout: "scaleway"
+page_title: "Scaleway: scaleway_iot_network"
+description: |-
+  Manages Scaleway IoT Networks.
+---
+
+# scaleway_iot_network
+
+-> **Note:** This terraform resource is currently in beta and might include breaking change in future releases.
+
+Creates and manages Scaleway IoT Networks. For more information, see the following:
+
+- [API documentation](https://developers.scaleway.com/en/products/iot/api).
+- [Product documentation](https://www.scaleway.com/en/docs/scaleway-iothub-networks/)
+
+For more step-by-step instructions on how to setup the networks on the external providers backends, you can follow these guides:
+
+- [Configuring the Sigfox backend](https://www.scaleway.com/en/docs/scaleway-iothub-networks/#-Configuring-the-Sigfox-backend)
+- [Using the Rest Network](https://www.scaleway.com/en/docs/scaleway-iothub-networks/#-Using-the-Rest-Network)
+
+## Examples
+
+```hcl
+resource "scaleway_iot_network" "main" {
+	name   = "main"
+	hub_id = scaleway_iot_hub.main.id
+	type   = "sigfox"
+}
+resource "scaleway_iot_hub" "main" {
+	name         = "main"
+	product_plan = "plan_shared"
+}
+```
+
+## Arguments Reference
+
+~> **Important:** Updates to any value will recreate the IoT Route.
+
+The following arguments are supported:
+
+- `name` - (Required) The name of the IoT Network you want to create (e.g. `my-net`).
+
+- `hub_id` - (Required) The hub ID to which the Network will be attached to.
+
+- `type` - (Required) The network type to create (e.g. `sigfox`).
+
+- `topic_prefix` - (Optional) The prefix that will be prepended to all topics for this Network.
+
+## Attributes Reference
+
+In addition to all arguments above, the following attributes are exported:
+
+- `id` - The ID of the Network.
+- `region` - (Defaults to [provider](../index.md#region) `region`) The [region](../guides/regions_and_zones.md#regions) in which the Network is attached to.
+- `created_at` - The date and time the Network was created.
+- `endpoint` - The endpoint to use when interacting with the network.
+- `secret` - The endpoint key to keep secret.
+
+## Import
+
+IoT Networks can be imported using the `{region}/{id}`, e.g.
+
+```bash
+$ terraform import scaleway_iot_network.net01 fr-par/11111111-1111-1111-1111-111111111111
+```
+