resource.gcore_k8s keypair required, doc fixed

Author: 0ndi

docs/resources/gcore_k8s.md

@@ -44,14 +44,14 @@ resource "gcore_k8s" "v" {
 
 - **fixed_network** (String)
 - **fixed_subnet** (String) Subnet should has router
+- **keypair** (String)
 - **name** (String)
 - **pool** (Block List, Min: 1, Max: 1) (see [below for nested schema](#nestedblock--pool))
 
 ### Optional
 
 - **auto_healing_enabled** (Boolean)
 - **id** (String) The ID of this resource.
-- **keypair** (String)
 - **last_updated** (String)
 - **master_lb_floating_ip_enabled** (Boolean)
 - **pods_ip_pool** (String)

gcore/resource_gcore_k8s.go

@@ -116,7 +116,7 @@ func resourceK8s() *schema.Resource {
 			},
 			"keypair": &schema.Schema{
 				Type:     schema.TypeString,
-				Optional: true,
+				Required: true,
 			},
 			"pool": &schema.Schema{
 				Type:     schema.TypeList,