[hotfix] [DOC] Fix missing areas in the development documentation #7959

Additional notes on sink

Author: YOMO-Lee

seatunnel-connectors-v2/README.md

@@ -56,11 +56,11 @@ own connectors, you need to follow the steps below.
 
 5.add connector dependency to seatunnel-dist/pom.xml, so the connector jar can be find in binary package.
 
-6.There are several classes that must be implemented on the source side, namely {connector name} Source, {connector name} SourceFactory, {connector name} SourceReader. Please refer to other connectors for details
+6.There are several classes that must be implemented on the source side, namely {ConnectorName}Source, {ConnectorName}SourceFactory, {ConnectorName}SourceReader; There are several classes that must be implemented on the sink side, namely {ConnectorName}Sink, {ConnectorName}SinkFactory, {ConnectorName}SinkWriter Please refer to other connectors for details
 
-7.{Connector Name} SourceFactory needs to be annotated with the **@AutoService (Factory.class)** annotation on the class name, and in addition to the required methods, an additional 'creatSource' method needs to be rewritten
+7.{ConnectorName}SourceFactory and {ConnectorName}SinkFactory needs to be annotated with the **@AutoService (Factory.class)** annotation on the class name, and in addition to the required methods, source side an additional **creatSource** method needs to be rewritten and sink side an additional **creatSink** method needs to be rewritten
 
-8.{Connector Name} Source needs to override the getProducedCatalogTables method
+8.{ConnectorName}Source needs to override the **getProducedCatalogTables** method; {ConnectorName}Sink needs to override the **getWriteCatalogTable** method
 
 ### **Startup Class**
 

seatunnel-connectors-v2/README.zh.md

@@ -46,11 +46,11 @@ SeaTunnel为与计算引擎进行解耦，设计了新的连接器API，通过
 
 5.将连接器添加到seatunnel-dist/pom.xml,这样连接器jar就可以在二进制包中找到.
 
-6.source端有几个必须实现的类，分别是{连接器名}Source、{连接器名}SourceFactory、{连接器名}SourceReader，具体可以参考其他连接器
+6.source端有几个必须实现的类，分别是{连接器名}Source、{连接器名}SourceFactory、{连接器名}SourceReader；sink端有几个必须实现的类，分别是{连接器名}Sink、{连接器名}SinkFactory、{连接器名}SinkWriter，具体可以参考其他连接器
 
-7.{连接器名}SourceFactory 里面需要在类名上标注 **@AutoService(Factory.class)** 注解，并且除了必须实现的方法外，需要额外再重写一个 createSource 方法
+7.{连接器名}SourceFactory 和 {连接器名}SinkFactory 里面需要在类名上标注 **@AutoService(Factory.class)** 注解，并且除了必须实现的方法外，source端需要额外再重写一个 **createSource** 方法，sink端需要额外再重写一个 **createSink** 方法
 
-8.{连接器名}Source 需要重写 getProducedCatalogTables 方法
+8.{连接器名}Source 需要重写 **getProducedCatalogTables** 方法；{连接器名}Sink 需要重写 **getWriteCatalogTable** 方法
 
 ### 启动类