update desc of cdc sse-kms

Author: lyu571

tencentcloud/services/cos/resource_tc_cos_bucket.go

@@ -188,12 +188,12 @@ func ResourceTencentCloudCosBucket() *schema.Resource {
 			"encryption_algorithm": {
 				Type:        schema.TypeString,
 				Optional:    true,
-				Description: "The server-side encryption algorithm to use. Valid value is `AES256` or `KMS`.",
+				Description: "The server-side encryption algorithm to use. Valid values are `AES256`, `KMS` and `cos/kms`, `cos/kms` is for cdc cos scenario.",
 			},
 			"kms_id": {
 				Type:        schema.TypeString,
 				Optional:    true,
-				Description: "The KMS Master Key ID. When `encryption_algorithm` is set to `KMS`, please provide it.",
+				Description: "The KMS Master Key ID. This value is valid only when `encryption_algorithm` is set to KMS or cos/kms. Set kms id to the specified value. If not specified, the default kms id is used.",
 			},
 			"versioning_enable": {
 				Type:        schema.TypeBool,

tencentcloud/services/cos/resource_tc_cos_bucket.md

@@ -58,7 +58,7 @@ resource "tencentcloud_kms_key" "example" {
 resource "tencentcloud_cos_bucket" "bucket_basic" {
   bucket               = "tf-bucket-cdc-${local.app_id}"
   acl                  = "private"
-  encryption_algorithm = "KMS"
+  encryption_algorithm = "KMS" #cos/kms for cdc cos
   kms_id               = tencentcloud_kms_key.example.id
   versioning_enable    = true
   acceleration_enable  = true