ISSUES-10056 update docs

docs/en/engines/database_engines/mysql.md

@@ -3,7 +3,7 @@ toc_priority: 30
 toc_title: MySQL
 ---
 
-# Mysql {#mysql}
+# MySQL {#mysql}
 
 Allows to connect to databases on a remote MySQL server and perform `INSERT` and `SELECT` queries to exchange data between ClickHouse and MySQL.
 
@@ -19,7 +19,7 @@ You cannot perform the following queries:
 
 ``` sql
 CREATE DATABASE [IF NOT EXISTS] db_name [ON CLUSTER cluster]
-ENGINE = MySQL('host:port', 'database', 'user', 'password')
+ENGINE = MySQL('host:port', ['database' | database], 'user', 'password')
 ```
 
 **Engine Parameters**

docs/ru/database_engines/mysql.md

@@ -6,8 +6,6 @@
 
 Не поддерживаемые виды запросов:
 
--   `ATTACH`/`DETACH`
--   `DROP`
 -   `RENAME`
 -   `CREATE TABLE`
 -   `ALTER`
@@ -16,7 +14,7 @@
 
 ``` sql
 CREATE DATABASE [IF NOT EXISTS] db_name [ON CLUSTER cluster]
-ENGINE = MySQL('host:port', 'database', 'user', 'password')
+ENGINE = MySQL('host:port', ['database' | database], 'user', 'password')
 ```
 
 **Параметры движка**

docs/zh/engines/database_engines/mysql.md

@@ -7,8 +7,6 @@ MySQL引擎用于将远程的MySQL服务器中的表映射到ClickHouse中，并
 
 但您无法对其执行以下操作：
 
--   `ATTACH`/`DETACH`
--   `DROP`
 -   `RENAME`
 -   `CREATE TABLE`
 -   `ALTER`
@@ -17,7 +15,7 @@ MySQL引擎用于将远程的MySQL服务器中的表映射到ClickHouse中，并
 
 ``` sql
 CREATE DATABASE [IF NOT EXISTS] db_name [ON CLUSTER cluster]
-ENGINE = MySQL('host:port', 'database', 'user', 'password')
+ENGINE = MySQL('host:port', ['database' | database], 'user', 'password')
 ```
 
 **MySQL数据库引擎参数**