fix(es): [127257768] update es instance doc (#3516)

* update es doc

* add changelog

---------

Co-authored-by: mikatong <mikatong@tencent.com>

Author: tongyiming

.changelog/3516.txt

@@ -0,0 +1,3 @@
+```release-note:enhancement
+resource/tencentcloud_elasticsearch_instance: update availability_zone and subnet_id description
+```

tencentcloud/services/es/resource_tc_elasticsearch_instance.go

@@ -49,7 +49,7 @@ func ResourceTencentCloudElasticsearchInstance() *schema.Resource {
 				Optional:    true,
 				Default:     "-",
 				ForceNew:    true,
-				Description: "Availability zone. When create multi-az es, this parameter must be omitted or `-`.",
+				Description: "Availability zone. When create multi-az es, this parameter must be the primary availability zone.",
 			},
 			"version": {
 				Type:        schema.TypeString,
@@ -67,7 +67,7 @@ func ResourceTencentCloudElasticsearchInstance() *schema.Resource {
 				Optional:    true,
 				Default:     "-",
 				ForceNew:    true,
-				Description: "The ID of a VPC subnetwork. When create multi-az es, this parameter must be omitted or `-`.",
+				Description: "The ID of a VPC subnetwork. When create multi-az es, this parameter must be the subnet in the primary availability zone.",
 			},
 			"password": {
 				Type:        schema.TypeString,

website/docs/r/elasticsearch_instance.html.markdown

@@ -163,7 +163,7 @@ The following arguments are supported:
 * `password` - (Required, String) Password to an instance, the password needs to be 8 to 16 characters, including at least two items ([a-z,A-Z], [0-9] and [-!@#$%&^*+=_:;,.?] special symbols.
 * `version` - (Required, String) Version of the instance. Valid values are `5.6.4`, `6.4.3`, `6.8.2`, `7.5.1` and `7.10.1`.
 * `vpc_id` - (Required, String, ForceNew) The ID of a VPC network.
-* `availability_zone` - (Optional, String, ForceNew) Availability zone. When create multi-az es, this parameter must be omitted or `-`.
+* `availability_zone` - (Optional, String, ForceNew) Availability zone. When create multi-az es, this parameter must be the primary availability zone.
 * `basic_security_type` - (Optional, Int) Whether to enable X-Pack security authentication in Basic Edition 6.8 and above. Valid values are `1` and `2`. `1` is disabled, `2` is enabled, and default value is `1`. Notice: this parameter is only take effect on `basic` license.
 * `charge_period` - (Optional, Int, ForceNew) The tenancy of the prepaid instance, and uint is month. NOTE: it only works when charge_type is set to `PREPAID`.
 * `charge_type` - (Optional, String, ForceNew) The charge type of instance. Valid values are `PREPAID` and `POSTPAID_BY_HOUR`.
@@ -180,7 +180,7 @@ The following arguments are supported:
 * `protocol` - (Optional, String) Create an https cluster, default is http.
 * `public_access` - (Optional, String) ES cluster public network access status. Valid values are `OPEN` and `CLOSE`. Cannot be changed at the same time as `es_acl`.
 * `renew_flag` - (Optional, String, ForceNew) When enabled, the instance will be renew automatically when it reach the end of the prepaid tenancy. Valid values are `RENEW_FLAG_AUTO` and `RENEW_FLAG_MANUAL`. NOTE: it only works when charge_type is set to `PREPAID`.
-* `subnet_id` - (Optional, String, ForceNew) The ID of a VPC subnetwork. When create multi-az es, this parameter must be omitted or `-`.
+* `subnet_id` - (Optional, String, ForceNew) The ID of a VPC subnetwork. When create multi-az es, this parameter must be the subnet in the primary availability zone.
 * `tags` - (Optional, Map) A mapping of tags to assign to the instance. For tag limits, please refer to [Use Limits](https://intl.cloud.tencent.com/document/product/651/13354).
 * `web_node_type_info` - (Optional, List) Visual node configuration.