Update feature/master-slave document (#5839)

docs/document/content/features/read-write-split/core-features.cn.md

-+++
-pre = "<b>3.3.2. </b>"
-title = "核心功能"
-weight = 2
-+++
-
-1. 提供一主多从的读写分离配置，可独立使用，也可配合分库分表使用。
-1. 独立使用读写分离支持SQL透传。
-1. 同一线程且同一数据库连接内，如有写入操作，以后的读操作均从主库读取，用于保证数据一致性。
-1. 基于Hint的强制主库路由。
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docs/document/content/features/read-write-split/core-features.en.md

-+++
-pre = "<b>3.3.2. </b>"
-title = "Core Features"
-weight = 2
-+++
-
-1. Provide the read-write split configuration of one master database with multiple slave databases, which can be used alone or with sharding table and database.
-1. Support SQL pass-through in independent use of read-write split.
-1. If there is write operation in the same thread and database connection, all the following read operations are from the master database to ensure data consistency.
-1. Forcible master database route based on SQL Hint.

docs/document/content/features/read-write-split/unsupported-items.cn.md

-+++
-pre = "<b>3.3.3. </b>"
-title = "不支持项"
-weight = 3
-+++
-
-1. 主库和从库的数据同步。
-1. 主库和从库的数据同步延迟导致的数据不一致。
-1. 主库双写或多写。
-1. 跨主库和从库之间的事务的数据不一致。主从模型中，事务中读写均用主库。
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docs/document/content/features/read-write-split/unsupported-items.en.md

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-pre = "<b>3.3.3. </b>"
-title = "Unsupported Items"
-weight = 3
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-
-1. Data replication between the master and the slave database.
-1. Data inconsistency caused by replication delay between databases.
-1. Double or multiple master databases to provide write operation.
-1. The data for transaction across Master and Slave nodes are inconsitent. In the Master-Savle replication model, the master nodes need to be used for both reading and writing in the transaction.
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docs/document/content/features/read-write-split/use-norms.cn.md

++++
+pre = "<b>3.3.2. </b>"
+title = "使用规范"
+weight = 2
++++
+
+## 支持项
+
+* 提供一主多从的读写分离配置，可独立使用，也可配合分库分表使用
+* 独立使用读写分离支持SQL透传
+* 同一线程且同一数据库连接内，如有写入操作，以后的读操作均从主库读取，用于保证数据一致性
+* 基于Hint的强制主库路由
+
+## 不支持项
+
+* 主库和从库的数据同步
+* 主库和从库的数据同步延迟导致的数据不一致
+* 主库双写或多写
+* 跨主库和从库之间的事务的数据不一致。主从模型中，事务中读写均用主库

docs/document/content/features/read-write-split/use-norms.en.md

++++
+pre = "<b>3.3.2. </b>"
+title = "Use Norms"
+weight = 2
++++
+
+## Supported Items
+
+* Provide the read-write split configuration of one master database with multiple slave databases, which can be used alone or with sharding table and database.
+* Support SQL pass-through in independent use of read-write split.
+* If there is write operation in the same thread and database connection, all the following read operations are from the master database to ensure data consistency.
+* Forcible master database route based on SQL Hint.
+
+## Unsupported Items
+
+* Data replication between the master and the slave database.
+* Data inconsistency caused by replication delay between databases.
+* Double or multiple master databases to provide write operation.
+* The data for transaction across Master and Slave nodes are inconsistent. In the Master-Slave replication model, the master nodes need to be used for both reading and writing in the transaction.