add changelog and update doc

Author: lyu571

.changelog/2070.txt

@@ -0,0 +1,3 @@
+```release-note:enhancement
+resource/tencentcloud_kubernetes_node_pool: add `orderly_security_group_ids` field to set the security group orderly.
+```

tencentcloud/resource_tc_kubernetes_node_pool.go

@@ -345,7 +345,7 @@ func composedKubernetesAsScalingConfigPara() map[string]*schema.Schema {
 			Computed:      true,
 			Elem:          &schema.Schema{Type: schema.TypeString},
 			ConflictsWith: []string{"auto_scaling_config.0.security_group_ids"},
-			Description:   "An ordered security groups to which a CVM instance belongs.",
+			Description:   "Ordered security groups to which a CVM instance belongs.",
 		},
 		"enhanced_security_service": {
 			Type:     schema.TypeBool,

website/docs/r/kubernetes_node_pool.html.markdown

@@ -201,7 +201,7 @@ The `auto_scaling_config` object supports the following:
 * `internet_charge_type` - (Optional, String) Charge types for network traffic. Valid value: `BANDWIDTH_PREPAID`, `TRAFFIC_POSTPAID_BY_HOUR`, `TRAFFIC_POSTPAID_BY_HOUR` and `BANDWIDTH_PACKAGE`.
 * `internet_max_bandwidth_out` - (Optional, Int) Max bandwidth of Internet access in Mbps. Default is `0`.
 * `key_ids` - (Optional, List, ForceNew) ID list of keys.
-* `orderly_security_group_ids` - (Optional, List) An ordered security groups to which a CVM instance belongs.
+* `orderly_security_group_ids` - (Optional, List) Ordered security groups to which a CVM instance belongs.
 * `password` - (Optional, String, ForceNew) Password to access.
 * `public_ip_assigned` - (Optional, Bool) Specify whether to assign an Internet IP address.
 * `security_group_ids` - (Optional, Set) Security groups to which a CVM instance belongs.