fix(vpn): [138477221] tencentcloud_vpn_gateway_routes update doc (#3275)

* add

* add

Author: SevenEarth

.changelog/3275.txt

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

tencentcloud/services/vpn/data_source_tc_vpn_gateway_routes.md

@@ -1,15 +1,12 @@
-Use this data source to query detailed information of VPN gateways.
+Use this data source to query detailed information of VPN gateways routes.
 
 Example Usage
 
 ```hcl
-data "tencentcloud_vpn_gateways" "foo" {
-  vpn_gateway_id              = "main"
-  destination_cidr_block                = "vpngw-8ccsnclt"
-  instance_type = "1.1.1.1"
-  instance_id              = "ap-guangzhou-3"
-  tags = {
-    test = "tf"
-  }
+data "tencentcloud_vpn_gateway_routes" "example" {
+  vpn_gateway_id   = "vpngw-8dua3tbl"
+  destination_cidr = "10.0.0.0/8"
+  instance_type    = "VPNCONN"
+  instance_id      = "vpnx-m16m4sw4"
 }
 ```

website/docs/d/vpn_gateway_routes.html.markdown

@@ -4,24 +4,21 @@ layout: "tencentcloud"
 page_title: "TencentCloud: tencentcloud_vpn_gateway_routes"
 sidebar_current: "docs-tencentcloud-datasource-vpn_gateway_routes"
 description: |-
-  Use this data source to query detailed information of VPN gateways.
+  Use this data source to query detailed information of VPN gateways routes.
 ---
 
 # tencentcloud_vpn_gateway_routes
 
-Use this data source to query detailed information of VPN gateways.
+Use this data source to query detailed information of VPN gateways routes.
 
 ## Example Usage
 
 ```hcl
-data "tencentcloud_vpn_gateways" "foo" {
-  vpn_gateway_id         = "main"
-  destination_cidr_block = "vpngw-8ccsnclt"
-  instance_type          = "1.1.1.1"
-  instance_id            = "ap-guangzhou-3"
-  tags = {
-    test = "tf"
-  }
+data "tencentcloud_vpn_gateway_routes" "example" {
+  vpn_gateway_id   = "vpngw-8dua3tbl"
+  destination_cidr = "10.0.0.0/8"
+  instance_type    = "VPNCONN"
+  instance_id      = "vpnx-m16m4sw4"
 }
 ```