fix(vpn): [138463917] tencentcloud_vpn_customer_gateways update code and doc (#3273)

* add

* add

* add

* Update 3273.txt

Author: SevenEarth

.changelog/3273.txt

@@ -0,0 +1,3 @@
+```release-note:enhancement
+datasource/tencentcloud_vpn_customer_gateways: update code and doc
+```

tencentcloud/services/vpn/data_source_tc_vpn_customer_gateways.go

@@ -89,7 +89,7 @@ func DataSourceTencentCloudVpnCustomerGateways() *schema.Resource {
 }
 
 func dataSourceTencentCloudVpnCustomerGatewaysRead(d *schema.ResourceData, meta interface{}) error {
-	defer tccommon.LogElapsed("data_source.tencentcloud_customer_gateways.read")()
+	defer tccommon.LogElapsed("data_source.tencentcloud_vpn_customer_gateways.read")()
 
 	logId := tccommon.GetLogId(tccommon.ContextNil)
 	ctx := context.WithValue(context.TODO(), tccommon.LogIdKey, logId)

tencentcloud/services/vpn/data_source_tc_vpn_customer_gateways.md

@@ -2,13 +2,21 @@ Use this data source to query detailed information of VPN customer gateways.
 
 Example Usage
 
+Query all customer gateways 
+
+```hcl
+data "tencentcloud_vpn_customer_gateways" "example" {}
+```
+
+Query customer gateways by filters
+
 ```hcl
-data "tencentcloud_customer_gateways" "foo" {
-  name              = "main"
-  id                = "cgw-xfqag"
+data "tencentcloud_vpn_customer_gateways" "example" {
+  name              = "tf-example"
+  id                = "cgw-r1g6c8fr"
   public_ip_address = "1.1.1.1"
   tags = {
-    test = "tf"
+    createBy = "Terraform"
   }
 }
-```
+```

website/docs/d/vpn_customer_gateways.html.markdown

@@ -13,13 +13,21 @@ Use this data source to query detailed information of VPN customer gateways.
 
 ## Example Usage
 
+### Query all customer gateways
+
+```hcl
+data "tencentcloud_vpn_customer_gateways" "example" {}
+```
+
+### Query customer gateways by filters
+
 ```hcl
-data "tencentcloud_customer_gateways" "foo" {
-  name              = "main"
-  id                = "cgw-xfqag"
+data "tencentcloud_vpn_customer_gateways" "example" {
+  name              = "tf-example"
+  id                = "cgw-r1g6c8fr"
   public_ip_address = "1.1.1.1"
   tags = {
-    test = "tf"
+    createBy = "Terraform"
   }
 }
 ```