optimize markdown [hcl]

Author: Himer

website/docs/d/mysql_backup_list.html.markdown

@@ -11,7 +11,7 @@ description: |-
 Use this data source to query the list of backup databases.
 
 ## Example Usage
-```
+```hcl
 resource "tencentcloud_mysql_account" "default" { 
     mysql_id = "my-test-database" 
     name = "tf_account" 

website/docs/d/mysql_instance.html.markdown

@@ -12,7 +12,7 @@ Use this data source to get information about a MySQL instance
 
 ## Example Usage
 
-```
+```hcl
 data "tencentcloud_mysql_instance" "database"{
      mysql_id = "my-test-database" 
 }

website/docs/d/mysql_parameter_list.html.markdown

@@ -12,7 +12,7 @@ Use this data source to get information about a parameter group of a database in
 
 ## Example Usage
 
-```
+```hcl
 data "tencentcloud_mysql_parameter_list" "mysql" {
     mysql_id = "my-test-database "
     engine_version = "5.5" 

website/docs/d/mysql_zone_config.html.markdown

@@ -11,7 +11,7 @@ description: |-
 Use this data source to query the available database specifications for different regions. And a maximum of 20 requests can be initiated per second for this query.
 
 ## Example Usage
-```
+```hcl
 data "tencentcloud_mysql_zone_config" "mysql" {
     region = "ap-guangzhou"
     result_output_file = "mytestpath" 

website/docs/r/mysql_account.html.markdown

@@ -13,7 +13,7 @@ Provides a MySQL account resource for database management. A MySQL instance supp
 
 ## Example Usage
 
-```
+```hcl
 resource "tencentcloud_mysql_account" "default" {
   mysql_id = "my-test-database"
   name = "tf_account"

website/docs/r/mysql_account_privilege.html.markdown

@@ -15,7 +15,7 @@ Provides a mysql account privilege resource to grant different access privilege
 ## Example Usage
 
 
-```
+```hcl
 resource " tencentcloud_mysql_account_privilege" "default" {
   mysql_id = " my-test-database "
   account_name= "tf_account"

website/docs/r/mysql_backup_policy.html.markdown

@@ -12,7 +12,7 @@ Provides a mysql policy resource to create a backup policy.
 
 ## Example Usage
 
-```
+```hcl
 resource " tencentcloud_mysql_backup_policy " "default" {
   mysql_id = "cdb-dnqksd9f"
   retention_period = 7

website/docs/r/mysql_instance.html.markdown

@@ -14,13 +14,13 @@ Provides a mysql instance resource to create master database instances.
 
 ## Example Usage
 
-```
+```hcl
 resource " tencentcloud_mysql_instance" "default" {
   internet_service = 1
   engine_version = "5.7"
   parameters = {
-  max_connections = "1000"
-}
+    max_connections = "1000"
+  }
   root_password = ******
   slave_deploy_mode = 0
   first_slave_zone = "ap-guangzhou-4"
@@ -36,8 +36,8 @@ resource " tencentcloud_mysql_instance" "default" {
   intranet_port = 3306
   security_groups = ["sg-ot8eclwz"]
   tags = {
-     name ="test"
-}
+    name ="test"
+  }
 }
 
 ```

website/docs/r/mysql_readonly_instance.html.markdown

@@ -13,7 +13,7 @@ Provides a mysql instance resource to create read-only database instances.
 
 ## Example Usage
 
-```
+```hcl
 resource " tencentcloud_mysql_readonly_instance " "default" {
   master_instance_id = "cdb-dnqksd9f"
   instance_name =" myTestMysql"